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easy science projects with hypothesis

7 Easy Scientific Method Experiments

Kids’ natural curiosity never fails to amaze me. Their imaginations and observation skills run wild, especially at the elementary level. And the classroom is the perfect place to explore and exercise their curious minds!

When it comes to introducing younger students to scientific concepts like drawing observations and conclusions, the scientific method is a great place to start. It doesn’t have to be anything crazy. I’ve seen some pretty intense resources that teach the scientific method for kids, and they’ve been anything but kid friendly!

My preferred way to teach science is to boil the scientific method down to these 5 steps:

  • Asking a research question
  • Making a hypothesis
  • Doing the experiment
  • Taking observations
  • Writing a conclusion

Keeping the scientific method for kids simple lets them explore their world without confusing them too much. When it comes to science concepts, we want to ease younger students in — not overwhelm them. This helps kids build a love of science that will last their whole lives!

With all that being said, I’ve gathered my favorite easy scientific method experiments for younger students into one bundle for you! These 7 Easy Science Experiments to Teach the Scientific Method are amazing because they all follow the same framework. This helps students know what to expect when it’s time to experiment and keeps your curriculum cohesive. Once we do one or two, my class gets into a nice groove and doesn’t need much direction on my part.

Plus, each of these experiments are available in a digital format, so they’re perfect for in-person or distance learning! And since they are so easy for students to follow, students will have no problem completing them at home.

What are the 7 easy scientific method experiments?

I’m glad you asked! Here is everything that is included in the scientific method for kids bundle:

1. Rainbow Milk Experiment

In the Rainbow Milk Magic Experiment, students will combine milk, dish soap, and food coloring to learn all about why the colors begin to swirl and look as if they are exploding into a rainbow. This is such a simple science experiment that works great with students of any age!

The rainbow milk experiment is one of the easy scientific method experiments kids can do in the classroom.

2. Tornado in a Bottle Experiment

This Tornado in a Bottle Experiment is the perfect way to teach the scientific method to kids. Students will practice measuring to fill a water bottle, then add dish soap and of course some glitter! They will then create a vortex to simulate a tornado and learn all about tornadoes.

Create a tornado in a bottle with this easy scientific method experiment for kids.

3. Fingerprint Science Experiment

In the Fingerprint Science Experiment, students will become detectives and investigate their fingerprints while learning about the scientific method! This STEM fingerprint science experiment will cover the three types of fingerprints and super fun facts about fingerprints in humans and animals.

A student places their fingerprint on the page using a Mr. Sketch marker, to record their type of fingerprint in this easy scientific method experiment.

4. Marshmallow Toothpick Tower Science Experiment

The Marshmallow Toothpick Tower Science Experiment teaches students about building structures. They get to build their own masterpieces with marshmallows and toothpicks. As a bonus, this one ends in a tasty snack that students can enjoy!

Students are using toothpicks and marshmallows to complete this easy scientific method experiment for kids. They record their data and hypothesis on the recording sheet.

5. Coffee Filter Digital Science Experiment

Students will learn about pigment and chromatography through this engaging experiment. They will get to draw a picture on a coffee filter using markers and observe what happens when it is sprayed with water. This is a fantastic way to introduce students to the concept of chemistry!

The rainbow experiment is one of the easy scientific method experiments that just needs markers and coffee filters.

6. Slime Experiment

What kid doesn’t love slime?! This fun experiment lets them make their own with just a few household supplies. I love using this one during Halloween — it’s got the perfect spooky vibe!

Children's crayons are on the conclusion page of the easy slime experiment.

7. Clean a Dirty Penny Science Experiment

Students love to collect and bring in a dirty penny for this science experiment. Students discover which cleaning solution works best to clean it and why using the scientific method! All you need are pennies, water, dish soap, salt, and vinegar. It’s a great option for Presidents’ Day, too!

Clean a penny is one of my easy scientific method experiments kids can complete in the classroom. This student is coloring the pennies on their observation sheet.

What’s included in each scientific method for kids experiment?

I recently edited this bundle of experiments to include a table of contents, digital versions on Google Slides, and some great teacher tips to help your experiments run smoothly and make life easier for you. Each experiment includes…

●       Explanation of the experiment, great for parents to follow at home!

●       Guiding Question and Hypothesis

●       Experiment (Picture and written)

●       Observations (Picture and written)

●       Conclusion

●       The science behind the experiment explained (includes fill in the blank option as well)

There you have it: everything you need to teach the scientific method to your students or a child at home!

Teaching the scientific method to kids doesn’t have to be complicated. It’s best to stick to 5 steps and use the same experimental format to keep science lessons cohesive. My 7 Easy Science Experiments to Teach the Scientific Method are an amazing option for anyone looking to introduce students to key STEM concepts!

How often do you experiment in your classroom? What’s your favorite experiment to do? I’d love to hear your thoughts!

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You may also like, 3 digital science lessons for elementary students, free 1st grade math warm-ups, fingerprint science project for kids, 2nd grade fractions activity, number search puzzle for fun multiplication and division practice.

easy science projects with hypothesis

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35 Easy Science Experiments You Can Do Today!

Looking for easy science experiments to do at home or in the classroom? You’re in luck because we’ve got over 35 easy science activities for kids that will help you make science fun for all ages. 

Most of these simple science experiments for kids are easy to prepare, quick to perform, and use household items or inexpensive materials you can find almost anywhere. To connect the fun to the “why it works” you’ll find an easy to teach explanation with every experiment!

Musical Jars Science Experiment 

easy science projects with hypothesis

This super easy experiment is simple as it is fun! Kids make their own musical instruments with clear jars and water then investigate sound waves, pitch, and more.

When the experiment is complete, use the colorful new “instrument” for a fun music lesson. Kids can play and take turns to “name that tune”!

Detailed Instructions & Video Tutorial ->  Musical Jars Science Experiment

Viscosity of Liquids Science Experiment

easy science projects with hypothesis

Viscosity may be a confusing term for kids at first, but this super easy experiment can help them see viscosity in action!

With marbles, clear jars, and a few household materials, kids will make predictions, record data, and compare the results while they test high and low density liquids.

Detailed Instructions & Video Tutorial ->   Viscosity Science Experiment

Floating Egg Science Experiment

Floating Egg Science Experiment

Can a solid egg float? Kids can find the answer and understand why with this quick science experiment. 

Discover just how easy it can be to make a raw egg float while testing the laws of density. We’ve included additional ideas to try so kids can make predictions and test the concept further.

Detailed Instructions & Video Tutorial ->   Floating Egg Science Experiment

Paper Towel Dry Under Water Experiment

easy science projects with hypothesis

Is it possible to keep a paper towel dry even when submerging it under water? The answer is a surprising “yes,” if you use science to help!

Start with the properties of your materials, make a prediction, then explore matter, density, volume, and more.

Detailed Instructions & Video Tutorial ->   Paper Towel Dry Under Water Experiment

Mixing Oil & Water Science Experiment

easy science projects with hypothesis

This simple experiment for kids helps them better understand density and the changes that happen when adding an emulsifier to the mix. 

Detailed Instructions & Video Tutorial ->   Mixing Oil & Water Experiment

Will it Float or Sink Science Experiment

Will it sink or will it float? This fun experiment challenges what students think they know about household items!

Students record their hypothesis for each item then test it to compare what they think will happen against their observations.

Detailed Instructions & Video Tutorial -> Float or Sink Science Experiment

Water Temperature Science Experiment

easy science projects with hypothesis

What does thermal energy look like? In this easy science experiment, kids are able to see thermal energy as they explore the concept in action.

With clear jars and food coloring, students can quickly see how molecules move differently through hot and cold water.

Detailed Instructions & Video Tutorial -> Water Temperature Science Experiment

Balloon Blow-up Science Experiment

Balloon Blow Up Science Experiment

Kids will discover how matter reacts when heated and cooled as they watch with surprise as baking soda and vinegar blow the balloon up before their eyes.

Detailed Instructions & Video Tutorial -> Balloon Blow-up Science Experiment

Floating Ping Pong Ball Science Experiment

easy science projects with hypothesis

Kids will giggle with joy with this super easy experiment. With only a ping pong ball and a hair dryer, students will have a great time while exploring Bernoulli’s Principle in action. 

We’ve included additional ideas to further explore the concept with different objects and observe the change in results.

Detailed Instructions & Video Tutorial -> Floating Ping Pong Ball Science Experiment

Hair Stand on End Science Experiment

easy science projects with hypothesis

It’s especially fun for those who’ve never seen static electricity in action before!

Detailed Instructions & Video Tutorial -> Hair Stand on End Science Experiment

Oil Bubbles in Water Science Experiment

easy science projects with hypothesis

Kids explore density and experience some chemistry when creating oil bubbles in water with everyday household items.

This experiment is particularly fun when kids see that they’ve made what looks like a lava lamp!

Detailed Instructions & Video Tutorial ->  Oil Bubbles in Water Science Experiment

Color Changing Water Science Experiment

easy science projects with hypothesis

Kids will be surprised as they watch a new color being “created” without mixing! Using only a clear bowl and glass, some food coloring, and water, this super easy science experiment is quick and easy with a huge wow factor. 

Try it with yellow and blue to follow along with our demonstration video then try different primary color combinations and explore the results.

Detailed Instructions & Video Tutorial ->  Color Changing Water Science Experiment

Magnetic Paper Clip Chain Science Experiment

easy science projects with hypothesis

It may seem a bit like magic but it’s actually science! It’s not hard to capture your kids’ attention with this quick and easy science experiment as they watch paper clips “stick” together and form a chain!

Perfect for younger children, the experiment only takes a few minutes and is a fun way to explore the concept of magnetic transference.

Detailed Instructions & Video Tutorial ->  Magnetic Paper Clip Chain Science Experiment

Is it Magnetic Science Experiment

With only a magnet and a few household items, kids will make and record their predictions, test and observe, then compare what they think is magnetic against the results.

Simple and quick, but some of the results may surprise your students!

Cloud in a Jar Experiment

easy science projects with hypothesis

This simple experiment only requires a few materials but really holds student attention as a cloud forms before their eyes!

Kids will learn new weather vocabulary as they explore how physical changes and reactions happen as clouds begin to take form. We’ve also included a helpful chart on the types of clouds.

Detailed Instructions & Video Tutorial ->  Cloud in a Jar Science Experiment

Magic Milk Science Experiment

easy science projects with hypothesis

Create a dancing rainbow of colors with this easy science experiment for kids!

Using only a few ordinary kitchen items, your students can create a color explosion in ordinary milk when they add our special ingredient. (Hint: The special ingredient (soap!) includes hydrophilic and hydrophobic molecules that make the magic happen!)

Detailed Instructions & Video Tutorial ->  Magic Milk Science Experiment

Walking Water Science Experiment

Walking Water Science Experiment

Water can’t really walk upwards against gravity, but this cool science experiment makes it seem like it can! 

Kids are able to see the capillary action process and learn how attraction and adhesive forces in action allow water to move out of one glass into another. 

Detailed Instructions & Video Tutorial -> Walking Water Science Experiment

Light Refraction Science Experiment

Light Refraction Science Experiment

The results of this easy science experiment are so amazing, it makes kids (and adults) think it must be magic!

Young scientists watch in surprise while they see an arrow change directions instantly. Investigating refraction couldn’t be more fun!

Detailed Instructions & Video Tutorial -> Light Refraction Science Experiment

Dancing Raisins Experiment

Dancing Raisins Science Experiment - Step (3)

Learn about the reactions of buoyancy and density in this simple science activity for kids. 

They may not need dancing shoes, but give them a glass of soda pop and the raisins in this fun experiment love to dance!

Detailed Instructions & Video Tutorial -> Dancing Raisins Science Experiment

See Sound Experiment

How to See Sound Science Experiment

Kids love this experiment because they are encouraged to drum loudly so they can “see” sound waves in action!

Detailed Instructions & Video Tutorial -> See Sound Science Experiment

Elephant Toothpaste Science Experiment

easy science projects with hypothesis

Grab some giant brushes and get ready to make elephant toothpaste! Although you might not be able to get an elephant excited by this super easy experiment, kids love it!

The impressive and quick results created by the chemical reaction and the heat released in the process makes an abundant amount of fun and colorful foam!

Detailed Instructions & Video Tutorial -> Elephant Toothpaste Science Experiment

Upside Down Glass of Water Science Experiment

Upside Down Water Glass Science Experiment

We all know what happens when we turn a glass of water upside down, but what if I told you you can do it without the water spilling out?

The experiment only requires a few common items and you’ll be amazed by the results of air pressure in action!

Detailed Instructions & Video Tutorial -> Upside Down Glass of Water Science Experiment

Pick up Ball with a Jar Science Experiment

easy science projects with hypothesis

It almost seems like magic but with the help of science, you can pick up a ball with an open jar!

Instead of magic, this easy science activity uses centripetal force and practice to do what seems like the impossible. 

Detailed Instructions & Video Tutorial -> Pick up Ball with a Jar Experiment

Will It Melt Science Experiment

Can you guess which items will melt? This easy outside experiment challenges what students think they know about the effects of the sun.

Pepper Move Science Experiment

Pepper Move Science Experiment

Can you make pepper move and zoom away with just a light touch of your finger? With science you can!

This experiment only takes a few quick minutes from beginning to end, but the reaction caused by surface tension makes kids want to do it over and over. 

Detailed Instructions & Video Tutorial ->  Pepper Move Science Experiment

Crush a Plastic Bottle Science Experiment

easy science projects with hypothesis

Go for it, crush that bottle, but don’t touch it! Although it usually can’t be seen or touched, air pressure is pushing against all surfaces at all times.

With this easy science activity kids can see air pressure at work when they watch a bottle crushes itself!

Detailed Instructions & Video Tutorial -> Crush a Plastic Bottle Science Experiment

Egg in Vinegar Science Experiment

easy science projects with hypothesis

This vinegar science experiment will have your eggs and kids bouncing (with excitement!) before you know it!

Kids can watch and explore the results of chemical reactions as the egg changes from something that seems solid into what feels like something bouncy!

Detailed Instructions & Video Tutorial -> Egg in Vinegar Science Experiment

Straw Through a Potato Science Experiment

easy science projects with hypothesis

Can you make a normal plastic straw go into a raw, solid potato? It seems like something impossible, but science can easily make it possible!

Pick your potatoes then let kids try their strength as they explore air pressure with this super easy experiment.

Detailed Instructions & Video Tutorial -> Straw Through a Potato Science Experiment

Rainbow in a Jar Science Experiment

easy science projects with hypothesis

With only a few household items, they’ll explore mass, volume, and density with every color layer!

Detailed Instructions & Video Tutorial -> Rainbow in a Jar Experiment

Tornado in a Bottle Science Experiment

easy science projects with hypothesis

Kids can have fun while learning more about centripetal force with this fun experiment.

With a little muscle and science, kids watch with amazement as they create their own glitter cyclone in a bottle as the centripetal force vortex appears.

Detailed Instructions & Video Tutorial -> Tornado in a Bottle Science Experiment

Why Doesn’t the Water Leak Science Experiment

Water Doesn't Leak Science Experiment

Can you poke holes in a plastic bag full of water without the water leaking out? With this super easy science activity you can!

Kids are stunned as they learn about polymers and how they can do what seems to be impossible.

Detailed Instructions & Video Tutorial -> Why Doesn’t the Water Leak Science Experiment

Use a Bottle to Blow-up a Balloon Experiment

Use a Bottle to Blow-up a Balloon Science Experiment

Is it possible to blow up a balloon with only water and science? 

In this super easy experiment, kids learn more about how matter behaves as they watch a balloon inflate and deflate as a result of matter being heated and cooled.

Detailed Instructions & Video Tutorial -> Use a Bottle to Blow-up a Balloon Experiment

Orange Float Science Experiment

easy science projects with hypothesis

Kids explore buoyancy as they learn about and test density in this sink or float science activity.

While it only takes a few minutes, this super easy experiment invites kids to predict what they think will happen then discuss why the heavier orange floats!

Detailed Instructions & Video Tutorial -> Orange Float Science Experiment

Pick up Ice with String Science Experiment

easy science projects with hypothesis

With only a few household items, kids learn about freezing temperatures and the results they create in saltwater versus freshwater.

Detailed Instructions & Video Tutorial -> Pick Up Ice with String Science Experiment

Color Changing Walking Water Experiment

easy science projects with hypothesis

Using the concepts explored in our popular Walking Water Science Experiment, kids will see color walk from one glass to another and change colors as it goes!

The quick experiment seems to defy gravity like magic, but don’t worry, kids can find out how science makes it work!

Detailed Instructions & Video Tutorial -> Color Changing Walking Water Experiment

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120+ Exciting 5th Grade Science Project Ideas With Hypothesis In 2023

5th Grade Science Project Ideas With Hypothesis

Are you ready to embark on an exciting journey into the world of 5th-grade science projects with hypotheses? Science projects are not just about fun experiments; they also involve forming hypotheses to make educated guesses about outcomes. But what makes a good hypothesis for a science project? In this blog, we’ll explore the key components of a successful hypothesis.

Selecting the right 5th-grade science project can be a challenge, and we’ll share some valuable tips to help you choose the perfect one. We’ll dive into the importance of combining hypothesis with your science project and why it’s a vital aspect of learning and discovery.

But that’s not all! We’ve also compiled an extensive list of 120+ exciting 5th-grade science project ideas with hypothesis, providing you with a wealth of inspiration for your next scientific adventure. Stay tuned with us to unleash the world of  5th-grade science project ideas with hypothesis  and nurture your curiosity in the process.

What Is A Good Hypothesis For A Science Project?

Table of Contents

A good hypothesis for a science project is like a smart guess. It helps scientists figure out what they think will happen in their experiment. To make a good hypothesis, you need to use words like  if  and  then.  For example,  If I water the plant every day, then it will grow taller.  This shows what you’re going to do and what you expect to see.

In addition, a strong hypothesis also needs to be testable. That means you can experiment to see if it’s true or not. It’s like a detective’s clue that leads you to find the answer. Scientists use good hypotheses to guide their experiments and learn new things about the world. So, making a good hypothesis is an important part of any science project.

Things To Remember While Selecting A 5th Grade Science Project Ideas With Hypothesis

Here are some things to remember while selecting a 5th grade science project ideas with hypothesis:

1. Personal Interest

Choose a 5th-grade science project that interests you. Picking a topic you’re curious about makes the project more enjoyable. Whether it’s plants, animals, or space, your passion can make learning fun.

2. Age-Appropriate

Make sure the project is right for your grade level. A 5th-grade project shouldn’t be too simple or too complex. It should match your skills and what you’ve learned in school.

3. Available Resources

Check if you have access to the materials you need. Some projects might need special tools or expensive stuff. It’s essential to choose something you can do with the materials you have.

4. Safety First

Keep safety in mind. Select a project that’s safe to do at home or in school. Make sure you won’t be using anything harmful or dangerous.

5. Clear Instructions

Look for a project with clear instructions. It’s easier when you know what to do step by step. Projects with easy-to-follow directions help you succeed and learn better.

Developing A Hypothesis For Your Science Project

Developing a hypothesis for your science project is a crucial step. It’s like making an educated guess about what you think will happen during your experiment. Here are seven key points to consider while creating a hypothesis:

  • Identify the Variables: Determine the two things you’re testing in your experiment, the  if  and  then  parts. For example, if you’re testing plant growth, the variables could be  amount of sunlight  and  plant height. 
  • Be Specific: Make sure your hypothesis is clear and precise. Avoid vague or broad statements. The more specific, the better.
  • Predict the Outcome: Your hypothesis should state what you expect to happen. Will one variable cause a change in the other? State your prediction clearly.
  • Use  If-Then  Statements : Craft your hypothesis using  if-then  statements to show the relationship between the variables. For instance,  If the amount of sunlight increases, then the plant height will also increase. 
  • Keep It Testable: Ensure that your hypothesis is something you can test through an experiment. It should lead to concrete results that you can measure.
  • Avoid Bias: Make sure your hypothesis doesn’t show your personal beliefs. It should be based on research and evidence, not what you want to happen.
  • Revisit and Revise : As you conduct your experiment, be ready to adjust your hypothesis if the results don’t match your initial prediction. Science is all about learning and adapting.

Here we have a list of 120+ exciting 5th grade science project ideas with hypothesis in 2023: 

  • Balloon Rocket

Hypothesis –   If I inflate a balloon and release it, then it will move forward because of the escaping air. 

  • Moldy Bread

Hypothesis –  I think bread left in different conditions will develop mold at varying rates. 

  • Growing Plants 

Hypothesis –   If I give plants different amounts of water, then they will grow differently. 

  • Magnet Magic

Hypothesis –  I predict that magnets will attract some objects but not others. 

  • Lemon Battery

Hypothesis –  I believe I can create a battery using a lemon because it is acidic. 

  • Volcano Eruption

Hypothesis –   I expect that a mixture of vinegar and baking soda will create a volcanic eruption. 

  • Density of Liquids

Hypothesis –   I think different liquids have different densities, and some will float on top of others. 

  • Solar Still

Hypothesis –   I predict that a solar still can collect clean water from dirty water through evaporation. 

  • Bouncing Balls

Hypothesis –   I believe that balls made from different materials will bounce to different heights. 

  • Static Electricity

Hypothesis –   I think rubbing a balloon on my hair will create static electricity that attracts objects. 

  • Fruit Battery

Hypothesis –  I expect that fruits like oranges and lemons can power a small light bulb. 

  • Color-Changing Milk

Hypothesis –  I predict that adding soap to milk with food coloring will make colorful patterns. 

  • Tornado in a Bottle

 Hypothesis –   I think that by swirling water and dish soap in a bottle, I can create a tornado-like vortex. 

  • Water Filtration

Hypothesis –   I believe that by using sand and gravel, I can filter impurities from water. 

  • Rust Formation

Hypothesis –  I predict that metal objects left in water will rust over time. 

  • Candy Dissolving

Hypothesis –  I think that different candies will dissolve at different rates in water. 

  • Seed Germination

Hypothesis –  If I plant seeds in various conditions, then they will sprout at different rates. 

Hypothesis –  I expect that by using a simple rain gauge, I can measure rainfall accurately. 

  • Sound Vibrations

Hypothesis –   I believe that different objects will produce different sounds when struck. 

  • Egg Drop Challenge

Hypothesis –   I predict that if I design a protective container, the egg will survive a fall. 

  • Paper Airplanes

Hypothesis –   I think that altering the shape of paper airplanes will affect their flight distance. 

  • Food Preservation

 Hypothesis –   I expect that different methods of food preservation will keep food fresh longer. 

  • Homemade Slime

Hypothesis –  I believe that mixing glue and borax will create a slimy substance. 

Hypothesis –   I predict that combining oil and water with Alka-Seltzer will create a mesmerizing lava lamp effect. 

  • Air Pressure

Hypothesis –   I think air pressure can be measured with a simple barometer. 

  • Crystal Growth

Hypothesis –  I expect that I can grow crystals by dissolving substances in water. 

  • Ocean Currents

Hypothesis –   I predict that hot water and cold water will create ocean currents in a container. 

  • Rainbow in a Jar

Hypothesis –   I believe I can create a rainbow by layering different liquids with different densities. 

  • Static Electricity Levitation

Hypothesis –  I think that static electricity can make a small object levitate. 

  • Melting Ice

Hypothesis –   I predict that adding salt to ice will cause it to melt faster. 

  • Potato Battery

Hypothesis –   I expect that a potato can conduct electricity and power a small device. 

  • Pendulum Swing

Hypothesis –   I believe that the length of a pendulum will affect its swing time. 

  • Soda Geyser

Hypothesis –   I predict that dropping Mentos candies into soda will create a geyser. 

  • Chromatography

Hypothesis –  I think I can separate the colors in markers using chromatography. 

  • Heat Transfer

Hypothesis –  I expect that different materials will transfer heat at varying rates. 

  • Rainfall and Runoff

Hypothesis –   I predict that if I simulate rainfall on different surfaces, some will produce more runoff. 

  • Fizzy Lemonade

Hypothesis –   I believe that combining lemon juice and baking soda will make lemonade fizzier. 

  • Rock Identification

Hypothesis –  I think I can identify different rocks by their characteristics. 

Hypothesis –  I predict that by cutting a straw, I can make it produce musical sounds like an oboe. 

  • Taste Perception

Hypothesis –   I expect that people’s taste perception may change when their sense of smell is altered. 

  • Color-Changing Flowers

Hypothesis –   I believe that adding food coloring to water will change the color of white flowers. 

  • Solar Cooker

Hypothesis –   I predict that a solar cooker can cook food using only the sun’s energy. 

  • Tornado Formation

Hypothesis –  I think that rotating two bottles will create a tornado effect. 

  • Vinegar and Baking Soda Rocket

Hypothesis –  I expect that mixing vinegar and baking soda in a bottle will launch it into the air. 

  • Popsicle Stick Bridge

Hypothesis –  I predict that I can build a strong bridge using only popsicle sticks and glue. 

  • Rainfall Patterns

Hypothesis –  I believe that rainfall patterns can be different in various parts of the world. 

  • Chemical Reactions

Hypothesis –  I think mixing certain chemicals will result in a visible reaction. 

  • Fruit Decomposition

Hypothesis –   I predict that different fruits will decompose at different rates. 

  • Balancing Act

Hypothesis –  I expect that I can balance various objects on a pivot point. 

  • Photosynthesis Simulation

Hypothesis –   I believe that using a simple setup, I can show how plants perform photosynthesis. 

  • Sinking and Floating

Hypothesis –  I think that objects with different densities will either sink or float in water. 

  • Tooth Decay

Hypothesis –  I predict that different liquids will affect teeth differently, simulating tooth decay. 

  • Rainwater Collection

Hypothesis –   I expect that by using a funnel, I can collect rainwater efficiently. 

  • Soundproofing

Hypothesis –  I think that different materials will block sound to varying degrees. 

  • Egg in a Bottle

Hypothesis –   I predict that I can place a peeled hard-boiled egg into a bottle without breaking it.  

  • Water Wheel

Hypothesis –   I believe that the flow of water can make a small wheel turn.  

  • Invisible Ink

Hypothesis –   I expect that I can create invisible ink that reveals messages under certain conditions.  

  •  Heat from the Sun

Hypothesis –   I predict that a dark-colored object will get hotter in the sun than a light-colored one.  

  • Layered Liquids

Hypothesis –   I think that liquids of different densities will form layers when mixed.  

  • Candle Burning

Hypothesis –   I predict that different types of candles will burn at different rates.  

  • Buoyancy with Clay Boats

Hypothesis –   I believe I can make clay boats that float and carry small loads.  

Hypothesis –   I expect that a mixture of cornstarch and water will behave strangely, like a liquid and a solid.  

  • Magnetic Slime

Hypothesis –   I predict that adding iron filings to slime will make it magnetic.  

  • Stalactites and Stalagmites

Hypothesis –   I think I can grow stalactites and stalagmites using a simple solution.  

Hypothesis –   I expect that different substances will have varying pH levels, which can be tested with indicator paper.  

  • Solar Still for Drinking Water

Hypothesis –   I believe that a solar still can produce clean drinking water from saltwater.  

Hypothesis –   I predict that I can create a sundial that tells time using the sun’s shadow.  

  • Dissolving Sugar

Hypothesis –   I expect that sugar will dissolve faster in hot water than in cold water.  

  • Balloon Inflator

Hypothesis –   I think that a chemical reaction in a bottle can inflate a balloon.  

  • Baking Soda and Vinegar Boat

Hypothesis –   I predict that a boat made from materials like baking soda and vinegar will move.  

  • Oil Spill Cleanup

Hypothesis –   I believe that using different materials can help clean up an oil spill in water.  

  • Seed Dispersal

Hypothesis –   I predict that seeds can be dispersed in various ways, such as by wind or animals.  

  • Lemonade Sweetness

Hypothesis –   I expect that lemonade sweetness can be adjusted by adding sugar in different amounts.  

  • Density of Solids

Hypothesis –   I think different solid objects will have different densities, which can be measured.  

  • Making Ice Cream

Hypothesis –   I predict that I can make ice cream by mxing ingredients and using ice and salt.  

  • Conduction and Insulation

Hypothesis –   I believe that different materials will either conduct or insulate heat.  

  • Centrifugal Force

Hypothesis –   I predict that spinning an object will create a centrifugal force that affects its path.  

  • Balloon-Powered Car

Hypothesis –   I expect that a car powered by a balloon will move because of the escaping air.  

  • Candle Extinguisher

Hypothesis –   I think that covering a candle with a glass will extinguish it by using up the oxygen inside.  

  • Water Filter Comparison

Hypothesis –   I predict that different water filters will remove impurities to varying degrees.  

  • Capillary Action

Hypothesis –   I expect that water will rise differently in materials with varying capillary action.  

  • Static Electricity and Salt

Hypothesis –   I believe that salt can be moved with static electricity.  

  • Food Coloring in Flowers

Hypothesis –   I predict that adding food coloring to water will change the color of flowers.  

  • Bottle Trombone

Hypothesis –   I think I can make a simple trombone-like instrument using a plastic bottle.  

  • Windmill Power

Hypothesis –   I expect that a windmill can generate power when exposed to wind.  

  • Chewing Gum Flavor

Hypothesis –   I predict that the flavor of chewing gum changes over time as it’s chewed.  

  • Yeast Balloons

Hypothesis –   I believe that yeast will produce gas that can inflate a balloon.  

  • Water Wheel Efficiency

Hypothesis –   I think that the design of a water wheel affects its efficiency in generating power.  

  • Simple Electric Circuit

Hypothesis –   I expect that I can make a light bulb glow by completing an electric circuit.  

  • Sugar Crystal Lollipop

Hypothesis –   I predict that sugar crystals will grow on a string dipped in a sugary solution.  

  • Temperature and Magnetism

Hypothesis –   I believe that magnets will behave differently at various temperatures.  

  • Styrofoam and Acetone

Hypothesis –   I expect that acetone will dissolve styrofoam.  

  • Starch in Foods

Hypothesis –   I think I can test for the presence of starch in different foods using iodine.  

  • Balloon-Powered Boat

Hypothesis –   I predict that a boat powered by a balloon will move on water.  

  • Melting Chocolate

Hypothesis –   I expect that chocolate will melt at different rates when heated.  

  • Air Pollution and Plant Growth

Hypothesis –   I believe that exposing plants to air pollution will affect their growth.  

  • Simple Motor

Hypothesis –   I predict that I can build a simple motor that turns when an electric current flows through it.  

  • Lemon Battery Voltage

Hypothesis –   I expect that different fruits will produce varying amounts of electricity when used as batteries.  

  • Fireworks in a Jar

Hypothesis –   I think that mixing oil and colored water will create a fireworks-like display in a jar.  

  • Bending Water with Static Electricity

Hypothesis –   I predict that static electricity can bend a stream of water from a faucet.  

  • Soda Can Fizz

Hypothesis –   I expect that dropping a mentos candy into a soda can will cause fizzing.  

  • Tornado Tube

Hypothesis –   I believe that connecting two plastic bottles with a tornado tube will create a vortex.  

  • Magnetic Attraction and Distance

Hypothesis –   I predict that magnets will attract objects from varying distances.  

  • Heat Absorption by Colors

Hypothesis –   I think that objects of different colors will absorb heat differently under sunlight.  

  • Lemon Battery Power

Hypothesis –   I expect that a lemon battery can power a small LED light.  

  • Strawberry DNA Extraction

Hypothesis –   I believe I can extract DNA from strawberries using common household items.  

  • Marshmallow Density

Hypothesis –   I predict that marshmallows of different shapes and sizes have different densities.  

  • Balloon-Powered Windmill

Hypothesis –   I think a windmill with balloons will turn when exposed to air.  

  • Spinning Colors

Hypothesis –   I expect that spinning a color wheel will create the illusion of blending colors.  

  • Sound and Vibration

Hypothesis –   I predict that different objects will create different sounds when struck and vibrate differently.  

  • Rock Erosion

Hypothesis –   I believe that different rocks will erode at varying rates when exposed to water.  

  • Air Pressure and Crushed Can

Hypothesis –   I expect that changing air pressure will crush an empty can.  

  • Straw Flute

Hypothesis –   I think that cutting and blowing through a straw can produce musical notes.  

  • Bottle Rocket

Hypothesis –   I predict that a bottle rocket filled with water and pressurized air will launch into the air.  

  • Fruit Electricity

Hypothesis –   I believe that different fruits can produce electricity using simple circuits.  

  • Melting Snow and Ice

Hypothesis –   I expect that different substances can help melt snow and ice at varying rates.  

  • Plant Growth in Different Soils

Hypothesis –   I think that different soils will affect the growth of plants differently.  

  • Static Electricity and Salt and Pepper

Hypothesis –   I predict that salt and pepper can be moved with static electricity.  

  • Floating Paperclip

Hypothesis –   I expect that surface tension can make a paperclip float on water.  

  • Crayon Melt Art

Hypothesis –   I believe that crayons will melt and create art when heated.  

  • Balloon-Powered Hovercraft

Hypothesis –   I predict that a hovercraft powered by balloons will glide over a smooth surface.  

  • Research Topics For Commerce Students
  • Maths Project Ideas For College Students

Importance Of 5th Grade Science Project Ideas With Hypothesis For Students 

In this section, we will discuss the importance of 5th grade science project ideas with hypothesis for students: 

1. Hands-On Learning

5th-grade science projects with hypotheses offer students a chance to learn through doing. They get to experiment, make predictions, and see the real-world results. This hands-on approach helps students grasp scientific concepts better.

2. Critical Thinking

These projects encourage critical thinking. Students have to come up with educated guesses (hypotheses) and then analyze their experiments’ outcomes. It teaches them to think logically and solve problems.

3. Curiosity and Exploration

Science projects fuel curiosity. They allow students to explore topics they find interesting, making learning more engaging. This curiosity can spark a lifelong interest in science.

4. Application of Knowledge

The things that students have learned in school can be used in real life. It helps them understand that science is not just in books, but all around them. This makes their education more useful.

5. Confidence Building

Successfully completing a science project with a hypothesis can boost a student’s confidence. They see that they can tackle challenging tasks and find solutions. This confidence can extend to other areas of their education and life.

Understanding what makes a good hypothesis is the first step in any 5th-grade science project with a hypothesis. It’s all about making educated guesses and having clear  if-then  statements. Remember to choose a project that matches your interest, is safe, and fits your grade level. With over 120 exciting 5th-grade science project ideas with hypothesis, you have a world of possibilities to explore. 

Moreover, these projects offer hands-on learning, boost critical thinking, and ignite curiosity. They let you apply what you’ve learned in school to real life. Completing these projects can build your confidence, showing that you can tackle challenges and make discoveries. So, dive into the world of 5th-grade science project ideas with hypothesis and start your exciting scientific journey!

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Education Corner

40 Best Science Experiments & Projects for Middle School

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Welcome to our curated collection of top science fair projects and experiments, perfectly tailored for the inquisitive middle schoolers. Our collection offers hands-on activities that will captivate young minds and ignite their passion for learning.

Science fairs during middle school years are less about competition and more about fostering a love for exploration, experimentation, and the thrill of the “Eureka!” moment. That’s why we have ensured that all the experiments on our list are fun and easy.

Through hands-on experimentation, students can gain a deeper understanding of scientific concepts, build confidence in their abilities, and cultivate a lifelong passion for learning.

1. Crushed Can

Crushed Can

Students will be amazed as they witness an ordinary can being transformed before their very eyes. By simply heating it and then rapidly cooling it, the can will be crushed as if by magic!

Learn more: Little Bins Little Hands

2. Water Bottle Rockets

In this engaging activity, students will have the opportunity to design, build, and launch their very own water-propelled rockets.

By adjusting variables like water level and air pressure, they’ll witness firsthand how these factors impact the rocket’s flight path and distance.

3. Cabbage Ph Indicator

Cabbage Ph Indicator

In this middle school science project, students will use red cabbage as a natural pH indicator to test the acidity or alkalinity of various household substances.

Learn more: Cabbage PH Indicator

4. Build a Solar Oven

Build a Solar Oven

By building these ingenious devices using simple materials, they will discover the incredible potential of renewable energy and its practical applications in everyday life.

Learn more: Solar Oven

5. Build a Helping Hand

Build a Helping Hand

In this captivating middle school science experiment, students will have the opportunity to construct their very own “Helping Hand” device.

Learn more: Science Buddies

6. DIY Lung Model

This captivating middle school project offers an exciting hands-on opportunity to explore the inner workings of our respiratory system.

By creating their own lung models using simple household materials, students will gain a deeper understanding of how our lungs function and the vital role they play in our bodies.

7. Flying Tea Bag

Flying Tea Bag

By harnessing the power of convection currents, students will learn about the fascinating relationship between heat and air pressure.

Learn more: Flying Tea Bag

8. Egg Float Experiment

Egg Float Experiment

In this captivating middle school science project, students will unlock the mysteries of density and water displacement while discovering the fascinating properties of eggs.

Learn more: Egg Float Experiment

9. Popsicle Stick Chain Reaction

This captivating middle school project is all about the magic of potential energy and kinetic energy. By carefully setting up a series of interlinked popsicle sticks, students will create a mesmerizing chain reaction that ripples through the entire structure.

10. How to See Sound

As they watch sound come to life through colorful visualizations, students will develop a deeper appreciation for the profound impact of sound in our daily lives.

11. Orange Peel Plate Tectonics

Orange Peel Plate Tectonics

In this captivating middle school project, students will learn about the dynamic of Earth’s crust and explore the powerful forces that shape our planet’s surface.

12. Heart Pump

Heart Pump

In this captivating middle school project, students will embark on a hands-on exploration of the human circulatory system and discover the marvels of the heart’s pumping mechanism.

Learn more: Heart Pump Model

13. Invisible Ink

Invisible Ink

By concocting their own invisible ink, students will discover the science behind chemical reactions and learn how certain substances react to reveal hidden text when exposed to heat, light, or other catalysts.

Learn more: Invisible Ink

14. DIY Grow Box

DIY Grow Box

In this captivating middle school project, students will learn the wonders of plant growth and the art of nurturing a thriving garden.

By constructing their own affordable and innovative grow boxes using simple materials, they’ll have the perfect environment to observe the magical transformation from seeds to flourishing plants.

Learn more: Easy DIY Grow Box

15. Creative Ferris Wheel

By encouraging creativity and experimentation, this engaging experiment not only promises an exciting learning experience but also fosters teamwork and critical thinking

16. Alka Seltzer Rockets

Alka Seltzer Rockets

Prepare for a high-flying adventure with the Alka Seltzer Rockets science experiment! This exciting and explosive activity is a perfect choice for middle school students eager to explore the wonders of chemical reactions and rocketry.

17. Why do Apples Turn Brown?

Through hands-on exploration, middle school students will discover the role of enzymes and oxygen in this intriguing transformation.

18. Water Bending Experiment

By understanding the principles of surface tension and cohesion, you’ll be able to create mesmerizing effects, seemingly bending water with just a piece of static material.

19. Water Clock

Water Clock

Experience the magic of timekeeping in its most ancient form with the fascinating Water Clock project! In this hands-on experiment, students will learn about history, physics, and engineering as they build their own timekeeping device using just water and a few simple materials.

Learn more: Steam Powered Family

20. Paper Ball Run Challenge

Paper Ball Run Challenge

Get ready for a thrilling and creative adventure with the Paper Ball Run Challenge! In this captivating science experiment, you’ll explore the principles of motion, gravity, and engineering as you design and build your very own paper ball run.

21. Flood Barriers

Flood Barriers

As you construct and evaluate your barriers, you’ll gain a deeper understanding of how floods occur and the importance of finding effective solutions.

Learn more: Teachers are terrific

22. Exploring the Law of Inertia Experiment Using a Fidget Spinner

Law of Inertia Experiment using a Fidget Spinner

This engaging experiment will help you unravel Sir Isaac Newton’s Law of Inertia in a fun and hands-on way. By using a fidget spinner, you’ll explore how the spinning motion persists due to inertia and how different factors can influence its behavior.

23. Air Pressure Impact on Ping Pong Balls 

By investigating the effects of air pressure on these lightweight spheres, you’ll uncover the secrets of flight, aerodynamics, and atmospheric pressure.

24. Rolling Uphill

In this experiment, you’ll witness the baffling phenomenon of a ball seemingly defying gravity by rolling uphill on a specially designed track.

25. Pick Up Ice with a String

Pick Up Ice with a String

Have you ever wondered if it’s possible to lift ice using just a simple string? In this fascinating experiment, you’ll explore the principles of heat transfer and surface tension as you attempt to defy gravity and lift ice cubes with nothing but a string.

Learn more: Pick Up Ice with a String

26. Keep a Paper Towel Dry Under Water 

Keep a Paper Towel Dry Under Water

This captivating experiment will unveil the wonders of surface tension and hydrophobicity, as you attempt to create a barrier that defies the conventional wisdom of water soaking through paper.

Learn more: Keep a Paper Towel Dry Under Water

27. Upside Down Glass of Water

Upside Down Glass of Water

This mesmerizing experiment will unravel the fascinating concept of air pressure and its influence on liquids. As you turn a glass of water upside down and observe the water’s defiance of falling out, you’ll gain insight into the powerful role of air pressure in our everyday lives.

Learn more: Upside Down Glass of Water

28. Make a Wine Glass Sing

Have you ever wondered how to turn a simple glass of wine into a musical instrument? This captivating experiment will introduce you to the fascinating concept of acoustics and how sound waves interact with liquid-filled glasses.

29. Crush a Plastic Bottle

Crush a Plastic Bottle

Are you curious about the forces at play when we compress a seemingly indestructible plastic bottle? This captivating experiment will unravel the science behind how pressure and air interact to create this astonishing effect.

Learn more: Crush a Plastic Bottle

30. Ruler Changes Size

Get ready to witness an optical illusion that will challenge your perception of reality. In this captivating experiment, you’ll explore the fascinating phenomenon of light refraction and how it can make objects appear different than they really are.

31. Egg in a Bottle

Egg in a Bottle

Have you ever wondered how to get an egg into a bottle without breaking it? This mesmerizing experiment will introduce you to the concept of air pressure and how it can be harnessed to achieve the impossible.

Learn more: Egg in a Bottle

32. Water Doesn’t Leak Out Science Experiment

Water Doesn’t Leak Out Science Experiment

This hands-on activity not only sparks curiosity and amazement but also teaches you about the properties of gases and the laws of physics.

So, get ready to be astounded and dive into the magic of science with the “Water Doesn’t Leak Out” experiment – an entertaining and enlightening adventure that will leave you thirsting for more knowledge!

Learn more: Water Science Experiment

33. Pick Up a Ball with a Jar

This captivating experiment will introduce you to the fascinating concept of air pressure and how it can create a powerful force that defies gravity.

34. Glowing Water Science

This captivating experiment will introduce you to the fascinating properties of fluorescent materials and how they interact with light.

35. Fizzy Cloud Dough

Fizzy Cloud Dough

The fizzing reaction not only adds an element of excitement but also provides a great opportunity to explore the science of chemical reactions and the release of carbon dioxide.

Learn more: Fizzy Cloud Dough

36. Underwater Magic Sand

Underwater Magic Sand

Get ready to witness the marvels of hydrophobic science and explore the secrets of this captivating underwater magic sand experiment.

Learn more: Teaching Mama Org

37. Make Bouncy Polymer Balls

This captivating experiment will take you on an exciting journey into the realm of polymers and chemical reactions.

38. Use a Crayon as a Candle

Crayon candle

This hands-on activity not only sparks curiosity and excitement but also offers a safe and educational way to explore the science of combustion and the flammability of materials.

Learn more: Crayon Candle

39. Flame Test Colors

Flame Test Colors

Not only does it spark curiosity and wonder but also deepens your understanding of the emission spectra of elements.

So, get ready to illuminate your scientific knowledge with the “Flame Test Colors” experiment – an educational and visually stunning adventure that will leave you dazzled and eager to discover more about the fascinating world of chemistry!

Learn more: Thought Co

40. Grow A Bean Plant

By planting a simple bean seed and providing it with water, sunlight, and care, you’ll witness the fascinating process of germination and watch as your bean seedling sprouts and grows.

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easy 5th grade science project ideas with hypothesis

99+ Easy 5th Grade Science Project Ideas with Hypothesis

Let’s join 5th-grade students on a journey into the world of science with the help of easy 5th grade science project ideas with hypothesis! We’re diving into fun experiments that make learning a blast. In this article, we’ll explore some cool science project ideas with hypotheses.

These projects aren’t just about having fun; they’re also about sparking curiosity and thinking creatively. Each project comes with a hypothesis, which is like a guess that gets our brains buzzing. So, get ready for some science fun that will keep you entertained and inspired!

Table of Contents

What is a 5th Grade Science Project?

A 5th-grade science project is a fun assignment tailored for elementary school kids in their fifth year. These projects often include hands-on experiments or investigations where students can explore and use scientific ideas.

Students pick a topic, make a guess called a hypothesis, do experiments, and share what they discover. The goal is to deepen their grasp of science, boost critical thinking, and foster a passion for science early on. Plus, it helps them practice doing research on their own and solving problems along the way.

Major Benefits of Easy 5th Grade Science Project Ideas with Hypothesis

Let’s talk about why 5th-grade science projects with hypotheses are so great! These projects are awesome because:

  • Hands-on Learning: You get to learn by doing fun experiments.
  • Critical Thinking: They help you think smart and solve problems.
  • Using Your Knowledge: You can use what you learn in class in real-life situations.
  • Being Creative: You can come up with cool ideas for your experiments.
  • Independence: You learn to work on your own and feel confident.
  • Communication Skills: You get better at explaining your ideas.
  • Love for Science: They can make you love science even more.
  • Family Fun: Sometimes, your family can join in on the fun.
  • Future Readiness: They prepare you for more exciting science adventures.

So, get ready to dive into these projects and have a blast learning!

Also Read: Science Fair Project Ideas for 8th Grade

List of Easy 5th Grade Science Project Ideas with Hypothesis

Here are easy 5th grade science project ideas with hypothesis for students in 2023:

Life Sciences

  • Plant Growth: How do different types of music affect plant growth?
  • Seed Germination: Do seeds germinate faster in light or darkness?
  • Ant Behavior: Does temperature affect the activity of ants?
  • Photosynthesis: How does the color of light impact the rate of photosynthesis in plants?
  • Fruit Ripening: What factors influence the ripening of fruits?
  • Mold Growth: Does temperature affect the growth of mold on bread?
  • Insect Preferences: Do insects have a preference for certain colors of flowers?
  • Effect of Music on Animals: Can music affect the behavior of pets like dogs or cats?
  • Bee Pollination: How do different flower shapes influence bee pollination?
  • Bird Feeding Preferences: Do different bird species prefer specific types of bird feed?

Earth Sciences

  • Weather Patterns: How does temperature affect weather patterns?
  • Soil Erosion: What factors contribute to soil erosion in your area?
  • Rock Types: Does the type of rock affect the temperature of the ground?
  • Rainfall and Plants : How does rainfall impact plant growth?
  • Earthquake Impact: How do building materials affect a structure’s ability to withstand earthquakes?
  • Water Filtration: Which materials are most effective at purifying water?
  • Volcano Simulation: Create a model to simulate a volcanic eruption.
  • Climate Change: Investigate the impact of human activity on global temperatures.
  • Ocean Currents: How do ocean currents affect marine life and weather?
  • Fossil Formation: How are fossils formed, and what can they tell us about ancient life?

Physical Sciences

  • Magnet Strength: What factors affect the strength of magnets?
  • Light and Color: How does the color of light affect plant growth?
  • Static Electricity: What materials create the most static electricity when rubbed together?
  • Balloon Rockets: Investigate the forces that make balloon rockets move.
  • Sound Waves: How does the shape of a musical instrument affect the sound it produces?
  • Solar Energy: Compare the efficiency of different solar cell types.
  • Density and Buoyancy: Does the shape of an object affect its buoyancy in water?
  • Friction and Surfaces: How do different surfaces affect the amount of friction?
  • Simple Machines: Explore the mechanics of simple machines like levers and pulleys.
  • Electric Circuits: Investigate how different materials affect the conductivity of an electrical circuit.
  • Chemical Reactions: Investigate the reaction between baking soda and vinegar.
  • Acid-Base Indicators: Test common household substances as acid-base indicators.
  • Crystals: Grow crystals from different solutions and compare their growth.
  • Food Preservation: Explore different methods of food preservation and their effectiveness.
  • Density of Liquids: Determine the density of various liquids and their layering.
  • pH Levels: Test and compare the pH levels of various household items.
  • Chemical Elements: Investigate the properties and common uses of different chemical elements.
  • Heat and Temperature: How does the amount of heat affect the temperature of water?
  • Chemical Reactions in Cooking: Study the chemical changes that occur during cooking.
  • Chemical Pollution: Investigate the effects of chemical pollution on water quality.

Environmental Sciences

  • Recycling: Analyze the effectiveness of recycling programs in your community.
  • Air Quality: Test and compare the air quality in different locations.
  • Composting: Study the decomposition rate of different compost materials.
  • Pollution and Plant Growth: How does pollution affect plant health?
  • Water Conservation: Investigate strategies for conserving water in daily life.
  • Energy Efficiency: Compare the energy efficiency of different household appliances.
  • Invasive Species: Research the impact of invasive species on local ecosystems.
  • Climate and Wildlife: Study how climate change affects local wildlife populations.
  • Water Pollution: Investigate the sources and effects of water pollution in your area.
  • Waste Reduction: Explore ways to reduce household waste and its environmental impact.
  • Solar System Models: Create a scale model of the solar system.
  • Phases of the Moon: Track and explain the phases of the moon.
  • Starry Night Sky: Observe and document the stars and constellations in your area.
  • Planet Research: Investigate the characteristics of a specific planet in our solar system.
  • Eclipse Predictions: Predict and observe solar or lunar eclipses.
  • Asteroid Impacts: Study the history of asteroid impacts on Earth.
  • Telescope Optics: Explore the optics of different types of telescopes.
  • Light Pollution: Investigate the impact of light pollution on stargazing.
  • Black Holes : Learn about black holes and their role in the universe.
  • Space Exploration: Research and present on a space mission or spacecraft.
  • Animal Behavior: Observe and document the behavior of a specific animal species.
  • Animal Adaptations: Study how animals have adapted to their environments.
  • Life Cycles: Investigate the life cycles of insects or amphibians.
  • Endangered Species: Research and raise awareness about an endangered species.
  • Habitat Study: Explore the different habitats in your local area and the species that inhabit them.
  • Animal Tracks: Identify and track animals through their footprints or signs.
  • Animal Senses: Investigate the sensory capabilities of animals.
  • Migration Patterns: Study the migration patterns of birds or other animals.
  • Animal Camouflage: Explore how animals use camouflage to hide from predators.
  • Insect Diversity: Collect and identify various insect species in your area.
  • Leaf Identification: Identify and classify different tree leaves in your area.
  • Germination and Light: How does light affect seed germination in different plant species?
  • Plant Reproduction: Investigate the reproduction methods of specific plants.
  • Aquatic Plants: Study the growth of plants in aquatic environments.
  • Fruit Dispersal: Explore the methods by which plants disperse their seeds.
  • Plant Diseases: Investigate common diseases affecting plants and their treatments.
  • Soil pH and Plants: How does soil pH affect the growth of different plants?
  • Invasive Plants: Research the impact of invasive plant species on local ecosystems.
  • Leaf Surface Area: Measure and compare the surface area of leaves from different plants.
  • Photosynthesis and Leaf Color: Explore the relationship between leaf color and photosynthesis.
  • Projectile Motion: Study the trajectory of objects in motion.
  • Newton’s Laws: Investigate and demonstrate Newton’s three laws of motion.
  • Buoyancy and Ships: Build a model boat and explore the principles of buoyancy.
  • Magnetic Levitation: Create a simple magnetic levitation device and explain how it works.
  • Heat Transfer: Study how different materials conduct heat.
  • Sound and Resonance: Investigate how sound waves create resonance in different objects.
  • Electricity and Magnetism: Explore the relationship between electricity and magnetism.
  • Motion and Gravity: Analyze how gravity affects the motion of objects.
  • Optics and Reflection: Study the reflection of light using mirrors and other surfaces.
  • Simple Harmonic Motion: Explore pendulum motion and oscillations .

Social and Behavioral Sciences

  • Social Media and Self-Esteem: Investigate the impact of social media on self-esteem.
  • Peer Pressure: Study how peer pressure influences decision-making in children.
  • Stereotypes and Biases: Explore the existence of stereotypes and biases in your community.
  • Study of Emotions: Investigate how different stimuli affect human emotions.
  • Bullying and its Effects: Analyze the effects of bullying on the mental and emotional well-being of students.
  • Memory and Recall: Research memory retention and the factors affecting recall.
  • Altruism vs. Selfishness: Conduct experiments to understand human behavior in helping others.
  • Music and Mood: Investigate how music choices impact mood and emotions.
  • Gender Roles in Media: Analyze how media portrays gender roles and stereotypes.
  • Media Consumption and Behavior: Explore the relationship between media consumption and behavior in children.

These easy 5th grade science project ideas with hypothesis cover a wide range of topics and provide opportunities for students to explore the world around them while developing their scientific and research skills. Enjoy your scientific journey!

In summary, easy 5th-grade science projects with hypotheses are not just educational assignments; they’re gateways to a world of wonder and exploration. They serve as bridges connecting young minds to the captivating realm of science. These hands-on experiments go beyond textbooks, allowing students to experience and understand the mysteries of the natural world firsthand.

These projects do more than teach scientific concepts; they ignite curiosity and foster a deep love for discovery. What makes them beautiful is the questions they spark, the critical thinking they encourage, and the joy of finding answers. So, as you embark on these scientific journeys, remember to embrace those questions, nurture your curiosity, and above all, enjoy the excitement of exploring science. After all, science is an endlessly fascinating journey of discovery and learning

FAQs (Easy 5th Grade Science Project Ideas with Hypothesis)

1. are these projects safe for 5th graders to do on their own.

Absolutely! These projects use common household items and are designed with safety in mind. However, adult supervision is always a good idea.

2. Can I use these projects for a science fair?

Yes, many of these projects make great science fair entries. Be sure to follow your school’s guidelines for project submissions.

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STEAM Powered Family

Easy Science Experiments for Kids

Looking for some easy experiments to do with the kids? We’ve got you covered with all of our favourite, easy science experiments for kids. The best part about all of these ideas is that they may be simple, but the lessons are powerful! Plus they can be adapted for a wide variety of ages and learning environments.

100+ Genius Easy Science Experiments for Kids

100+ Easy Science Experiment for Kids

Disclaimer: This article may contain commission or affiliate links. As an Amazon Influencer I earn from qualifying purchases. Not seeing our videos? Turn off any adblockers to ensure our video feed can be seen. Or visit our YouTube channel to see if the video has been uploaded there. We are slowly uploading our archives. Thanks!

Fun Science Experiments

First let’s kick things off with a list of easy science experiments for kids that we have done many times over and are a favourite of STEAM Powered Family readers around the world. Almost all of these projects use common household items and are tested by kids and teachers. We have science experiments for all ages, from preschool to middle school, even adults love to do these. The best part is that you can use these ideas to help students gain comfort and eventually mastery of the Scientific Method . This list is also a fantastic place to find ideas for your science fair projects.

Baking Soda and Vinegar Experiments

It is incredible the number of cool science experiments you can create from this one simple chemical reaction between Baking Soda and Vinegar . This endothermic reaction, is a classic acid and base chemical reaction.

Here is the chemical formula of this reaction

C 2 H 4 O 2  + NaHCO 3  -> NaC 2 H 3 O 2  + H 2 O + CO 2 vinegar + sodium bicarbonate -> sodium acetate + water + carbon dioxide

Some of our favourite baking soda and vinegar science activities of all time include Bottle Rockets , Fireworks Experiment , Baking Soda Oobleck , and Hatching Dinosaur Eggs . No matter which one you pick, you must try at least one vinegar and baking soda experiment when little scientists are first learning about chemistry.

Bottle Rockets - Backyard Science Launching Young STEM Minds

Balloon Races – Physics Science Experiment

This fast paced, exciting science experiment explores the principles of physics and Newton’s Laws of Motion. It is so simple, kids won’t believe how much they are learning while having fun! Balloon Races make a fantastic activity for the classroom, camp, after school program or at home when the kids need to burn off some energy while learning!

Exciting, hands on physics activities that explore Newton's Laws of Motion. An inquiry based lesson plan to facilitate deeper learning and retention.

Build a Compass – A Magnetism Science Experiment

Did you know it is actually very easy to build a compass ? All you need is a bowl of water, a needle and a cork! Have your children explore the same magnetic forces that inspired Einstein as a child in this fun science experiment.

DIY compass

Lollipop Layers Density Experiment

Density is such a fun phenomenon to explore, and in this version of a density experiment we are using candy! Lollipop layers is so simple, all you need is a bunch of lollipops or hard candies, water, and a patient hand. The result… GORGEOUS!

Layered Lollipops uses candy in a beautiful candy stem challenge

Greenhouse Effect Science Experiment

Climate change experiments are so important for helping foster a deep understanding in our students. In this Greenhouse Effect Science Experiment we learn how gas are changing the atmosphere and affecting global temperatures.

Greenhouse Effect Science Experiment

Volcano Experiment

A classic science project for kids, making a volcano can be as simple or as complex as you want to make it. The goal of the exercise, a big, bubbly reaction that is sure to WOW students. Here are some of our favourite Volcano Experiments we have done.

Lemon science experiment creating a beautiful, sensory rich exploding lemon volcano

Have you ever made a Lava Lamp at home? This sensory science experiment is mesmerizing! Watching those bubbles bounce and dance and play is sure to capture students of all ages. Best of all, we have 5 different ways you can make a Lava Lamp (including the old favourite with alka seltzer), so no matter what supplies you have available, we have a Lava Lamp experiment you can do.

Against a white background a mason jar has dark and light green liquids with bubbles in dark green going through the light green layer in a lava lamp style. Overlay text says How to Make a Lava Lamp

Make Milk Plastic

While teaching elementary science I was always on the hunt for cool science experiments that would impress my kids and really stretch their interests and foster their curiosity. One of the biggest hits of all time was a surprisingly simple experiment, that we never really considered as possible… making plastics. Specifically making bioplastics out of milk . With this concept you can create a lesson that is a powerful way to explore polymers with kids. This easy science experiment is a sure fire hit with students and gives them a wonderful keepsake of their studies.

Make Plastic Toys From Milk - A chemistry STEM STEAM activity that is sure to delight www.STEAMPoweredFamily.com

Bouncy Naked Egg in Vinegar Experiment

Have you ever tried to shell a raw egg? Impossible you say? Challenge your hypothesis in this egg in vinegar science experiment ! Not only will you remove the shell from a raw egg, but the result is a bouncy, rubbery, raw egg. An incredibly simple science experiment, it can also be used to teach higher level concepts in osmosis and biology for students learning about the parts of the cell.

Bouncy rubber egg in vinegar experiment

Making Water Rise Experiment Magic

When we did this water experiment the kids jaws hit the floor! It is so simple, but the results shock the kids. This is one very easy science experiment that is also incredibly memorable. It teaches the science of creating a vacuum in a very simple approach with just a jar, water and a candle. Learn how to make water rise and wow your students!

Why Does Water Rise? Best Science Experiments for Kids!

Elephant Toothpaste

You have probably seen the Elephant Toothpaste Science Experiment done on TV or at the Science Center where they create a massive gusher that goes many feet into the air, but did you know there is a very simple and easy way you can do this experiment yourself with items you already have available? This classic science experiment is one every student should experience.

Elephant Toothpaste

Frozen Bubbles

If you live where it gets well below freezing, one of our favourite winter science experiments is to freeze bubbles . There are some specific science principles you need to understand to ensure this experiment is a beautiful success!

The secret behind making frozen bubbles

Growing Crystals

As a crystal lover and passionate family of rock hounds, the idea of growing crystals is something that we love! Over the years we have found all the ways to simplify and perfect the process so you can easily grow gorgeous crystals and learn the science behind crystallization. We have made crystals from borax, alum and sugar. We even have edible crystals called Rock Candy … yum!!

The secret to growing really big crystals

Explore Surface Tension with Glitter (or Pepper) and Soap

Surface tension is the focus of this simple science experiment that provides a powerful demonstration of the effect soap has on surface tension. Do this easy experiment, all you need is a plate, water, glitter or pepper and dish soap. Such an easy science experiment for kids!

Magic Glitter Handwashing Demonstration

Bottle Crush – Simple Heat Transfer Experiment

Got a soda pop bottle, some hot water and a cold winter day (or a bucket of ice)? Then you have all the makings of a cool science experiment! This this Bottle Crush science experiment , kids feel like all powerful magicians as they crush plastic bottles without touching them.

Bottle Crush - Crush a bottle with your mind, and a little science. Inspired by Mythbusters, a science experiment that seems like magic!

pH Testing Lab

Have you ever done a pH lab ex periment? In this simple version, you can use items from the kitchen to create a science lab that allows students to explore pH and learn more about acids and bases.

Using items from the kitchen this fascinating experiment explores Acids and Bases and pH Levels. Kids will love digging through the pantry to test out whether items are an acid or a base, and explore pH levels of every day items. An excellent elementary experiment for hands on with science with lots of further studies.

Gummy Mummies – Gummy Bear Mummification Experiment

Gummy Bear Science Experiments are always a hit with kids and in this easy science experiment we explore how the mummification process works. Add an extra fun comparison by also placing some of the gummy bears in liquid.

Lego Gummy Mummies are a unique experiment exploring desiccation. An excellent activity linking science and ancient historical cultures like the Egyptians.

Walking Rainbow

Want a beautiful rainbow science experiment that is soooo easy it all happens without you even needing to do anything? Simply set it up, walk away, and come back to a beautiful rainbow of colours. In the Walking Rainbow Science Experiment kids learn about capillary action and color mixing. All you need is jars, paper towels, water and food coloring.

The Walking Rainbow science experiment should have been easy, but due to a mistake we discovered a fascinating capillary action and natural balance project.

Rainbow Rain

On a rainy day, why not make Rainbow Rain in this simple science experiment for kids. The results are beautiful and will brighten a dreary day. All you need is water, shaving cream and a few drops of food colouring.

Rainbow Rain Shaving Cream Cloud in a Jar Experiment

Skittles Experiment

It doesn’t get any easier than the simple Skittles Experiment . All you need is a plate, some Skittles and water. Soon you will have a spectacular science experiment the kids will beg to do again and again.

Skittles Experiment for the Science Fair inspired by Starry Night

It’s been all the rage for a few years, and whether you love it or hate it, making slime can actually be a fantastic science experiment for kids.

Cornstarch slime

Ready to do one of the most simple science experiments, but also the most fun? It’s time to make non-Newtonian Fluids! Known as Oobleck , it turns sold under pressure and liquifies when you remove pressure. And it will keep kids learning hands on and exploring for hours! The best part is all the different science experiments you can do with Oobleck.

Finding the perfect oobleck recipe science fair project

Now when you think of Moon Dough , you don’t immediately think of easy science experiments for kids, but that’s because you have never made Moon Dough the way we make Moon Dough! In our recipes we learn about emulsifiers, glow in the dark science, chemical reactions, heat transfer, all while having so much fun exploring science and sensory play with kids of all ages.

Moon Dough Recipe

Making playdough with your kids is a great way to teach them about mixtures, solutions, substances, and chemical changes. It is also teaches about the importance of formulas and the role each ingredient plays in creating one of the all time most popular sensory play items, playdough!

A bright yellow playdough flower is decorated with seeds and craft items. Overlay text says Sunflower Playdough Recipe and STEAM Activity

Magic Milk Experiment

Ready for some serious wow factor in a really easy science experiment? Magic Milk is a classic experiment that always mesmerizes kids. Over the years we have used it to learn about surface tension, space, pollution on Earth Day, and so much more. All you need is milk, dish soap and a drop of food colouring… and watch the magic colour explosion happen!

magic milk in 33% cream with color fractal explosions

Simple Snow and Ice Experiment

Is it winter where you live? This is a fantastic, very simple and easy experiment to do with young students. All you need is some jars, snow, ice cubes and water… and watch the melting magic !

Snow Ice Simple Science is an experiment all ages can do and teaches valuable lessons about the molecular structure of water in ice form versus snowflake.

Heat Transfer Experiment – Slurpee Making

Kids love this simple slurpee science experiment where they get a cold, sweet treat at the end in the form of a homemade slurpee! Using the science of heat transfer, kids will make their very own slurpee out of juice. A great experiment for learning about temperature, heat and heat transfer.

Sweet slurpee science is a fantastic activity for kids, with a tasty result they will love. This simple heat transfer experiment is perfect for all ages.

Flying Ghosts Tea Bag Experiment

Obviously this easy science experiment is perfect for Halloween, but don’t let that stop you from doing it at any time during the year. The results of the flying tea bag experiment are always a hit with kids and all you need is fire and a tea bag to set flight to curiosity!

Flying Tea Bag Ghosts Halloween Science Experiment

Ice Fishing

Inspire your little ones to learn more about how salt and water react in this fun ice fishing science experiment .

Salt and Ice Experiment - Ice fishing experiment

Water and Oil Experiment

Demonstrate how oil and water don’t mix in this colourful oil and water experiment. All you need is a few simple ingredients: water, oil and food colouring. When it comes to easy science experiments for kids, it doesn’t get easier than this!

oil and water experiment

Magnet Science – Harry Potter Inspired Wingardium Leviosa

Use the magic of science to wow students, or teach students this experiment so they can wow their friends with their new found magical abilities. You can also use this science to make ghosts fly! Who knew magnet science was so cool?

Wingardium Leviosa Science Experiment Make A Feather Levitate

Marshmallow Science

Marshmallows are the secret to easy science experiments that you never knew existed in your pantry! Learn how to teach concepts around heat, molecules, expansion and more in this marshmallow science experiment .

This simple marshmallow science experiment is an engaging STEAM activity for elementary. Learn a little science and a little art, then eat the results!

Sky Science

Kids wondering why the sky changes colour during sunrise and sunsets? Or the always famous, why is the sky blue, question? Explore the science of the sky colours in this easy experiment .

Sky Science is a simple experiment that answers one of childhoods biggest questions - Why is the sky blue and why does the sky change colors at sunset?

Easy STEM Challenges

Why not combine Science with some Technology, Engineering and Math in these easy STEM Projects for kids.

Build a Popsicle Stick Catapult

One of the original STEM projects kids have been building for generations is the simple catapult. There are lots of different ways you can build a catapult, but here we are making the always easy and popular Popsicle Stick Catapult .

Catapults engineered from popsicle sticks

Build a Water Clock

This easy STEM project has some significant historical context that your history loving students will go wild over. Plus building a water clock is surprisingly easy but packs a powerful learning punch.

Water Clock STEM Activity

Make a Glow Salt Circuit

Before you start to worry, building a circuit doesn’t have to be difficult. In fact, once your students master the basics of electricity and circuits, they will want to start adding circuits to everything. To get started, one of the most simple circuit projects you can make is our Glow Salt Circuit . Don’t worry, we provide all the detailed instructions to ensure your project is a hit.

Glow Salt Circuit STEAM Activity

Build a Battery

Another great way to explore electricity science is to build a simple battery out of food. We have built Lemon Batteries , Pumpkin Batteries and even Potato Batteries . Kids love capturing the energy in our foods and using it to light up!

Learn all about electricity, batteries, power and more by building a Lemon Battery in this science experiment

Build a Bridge

A bridge building challenge is a great way to challenge a class either in school, at camp or in an after school program. Kids get to let their innovation, creativity, and understanding of science and engineering go wild as they build their creations. Then test them out against other designs to see which concepts come out on top.

Rainbow Bridge STEM Activity

Rube Goldberg Machine

Building simple machines is an incredible STEM project for all ages. With a Rube Goldberg Machine you are linking simple machines into a chain reaction to achieve an end goal. The best part about a Rube Goldberg Machine project is that it challenges students to work together and apply critical thinking and problem skills as they develop their STEM literacy. Check out the Rube Goldberg Machine we built as a Leprechaun Trap .

Leprechaun Trap - Rube Goldberg Machine

Build a Catapult Cannon

Catapults may be fun, but as kids get older, they want bigger challenges, bigger launches and bigger fun with their learning. Enter the Catapult Cannon , a Catapult design that launches harder and farther than your regular catapults, and challenges students to apply more advanced engineering and physics concepts.

Catapult Cannon STEM Activity and Game Launching

Build a Confetti Cannon or Seed Bomb Launcher

For a smaller scale challenge with mini cannons, try making this Confetti Cannon , which includes two different designs, one for little learners and one more complex design for older kids. Plus you can use a similar design concept to make a Seed Bomb Launcher for homemade Seed Bombs.

Confetti Cannons are so much fun to use and build. Here we have 2 levels of difficulty, a simple design and a STEM challenge powered by imagination.

Tower Construction Challenge

A very easy STEM Project is to challenge kids to build a tower. Now you can do this with blocks or LEGO, but up the challenge by having kids build with candy , marshmallows , paper, pasta or even frozen bubbles . Add a time limit to turn this into a one minute STEM challenge.

Candy Construction STEM Challenge

Make a Thaumatrope

Optical illusions are always a fun experiment for kids. For a quick and easy optical illusion for kids, try building Thaumatropes . It is so easy, especially with our ideas and templates.

Thaumatrope Project for Kids

Build a Balloon Car

This is a STEM build that is perfect for a classroom or after school group. Build a Balloon Car that is powered by air. For younger kids, challenge them with the Make It Move STEM Challenge .

Recycled Materials Balloon Car

Biology Science Building Models

Turn a boring Biology lesson into a fun science class with a STEM project inspired by the human body. Build functioning models of The Lungs , The Heart or The Hand .

Build a lung model project

Science Projects and STEM Activities for the Holidays

Need something specific to celebrate the seasons or holidays? Check out all of these resources featuring the best in easy science experiments for kids with a special theme!

Spring Activities

Summer Activities

Fall Activities

Winter Activities

End of School Year

Valentine’s Day

St. Patrick’s Day

Halloween Activities

Christmas Activities

5 Days of Smart STEM Ideas for Kids

Get started in STEM with easy, engaging activities.

Science Bob

  • Experiments
  • Science Fair Ideas
  • Science Q&A
  • Research Help
  • Experiment Blog

Okay, this is the hardest part of the whole project…picking your topic. But here are some ideas to get you started. Even if you don’t like any, they may inspire you to come up with one of your own. Remember, check all project ideas with your teacher and parents, and don’t do any project that would hurt or scare people or animals. Good luck!

  • Does music affect on animal behavior?
  • Does the color of food or drinks affect whether or not we like them?
  • Where are the most germs in your school? ( CLICK for more info. )
  • Does music have an affect on plant growth?
  • Which kind of food do dogs (or any animal) prefer best?
  • Which paper towel brand is the strongest?
  • What is the best way to keep an ice cube from melting?
  • What level of salt works best to hatch brine shrimp?
  • Can the food we eat affect our heart rate?
  • How effective are child-proof containers and locks.
  • Can background noise levels affect how well we concentrate?
  • Does acid rain affect the growth of aquatic plants?
  • What is the best way to keep cut flowers fresh the longest?
  • Does the color of light used on plants affect how well they grow?
  • What plant fertilizer works best?
  • Does the color of a room affect human behavior?
  • Do athletic students have better lung capacity?
  • What brand of battery lasts the longest?
  • Does the type of potting soil used in planting affect how fast the plant grows?
  • What type of food allow mold to grow the fastest?
  • Does having worms in soil help plants grow faster?
  • Can plants grow in pots if they are sideways or upside down?
  • Does the color of hair affect how much static electricity it can carry? (test with balloons)
  • How much weight can the surface tension of water hold?
  • Can some people really read someone else’s thoughts?
  • Which soda decays fallen out teeth the most?
  • What light brightness makes plants grow the best?
  • Does the color of birdseed affect how much birds will eat it?
  • Do natural or chemical fertilizers work best?
  • Can mice learn? (you can pick any animal)
  • Can people tell artificial smells from real ones?
  • What brands of bubble gum produce the biggest bubbles?
  • Does age affect human reaction times?
  • What is the effect of salt on the boiling temperature of water?
  • Does shoe design really affect an athlete’s jumping height?
  • What type of grass seed grows the fastest?
  • Can animals see in the dark better than humans?

Didn’t see one you like? Don’t worry…look over them again and see if they give you an idea for your own project that will work for you. Remember, find something that interests you, and have fun with it.

To download and print this list of ideas CLICK HERE .

easy science projects with hypothesis

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70 Best High School Science Fair Projects in Every Subject

Fire up the Bunsen burners!

Collage of high school science fair projects, including 3D printed cars and a DIY vacuum chamber

The cool thing about high school science fair projects is that kids are old enough to tackle some pretty amazing concepts. Some science experiments for high school are just advanced versions of simpler projects they did when they were younger, with detailed calculations or fewer instructions. Other projects involve fire, chemicals, or other materials they couldn’t use before.

Note: Some of these projects were written as classroom labs but can be adapted to become science fair projects too. Just consider variables that you can change up, like materials or other parameters. That changes a classroom activity into a true scientific method experiment!

To make it easier to find the right high school science fair project idea for you, we’ve rated all the projects by difficulty and the materials needed:

Difficulty:

  • Easy: Low or no-prep experiments you can do pretty much anytime
  • Medium: These take a little more setup or a longer time to complete
  • Advanced: Experiments like these take a fairly big commitment of time or effort
  • Basic: Simple items you probably already have around the house
  • Medium: Items that you might not already have but are easy to get your hands on
  • Advanced: These require specialized or more expensive supplies to complete
  • Biology and Life Sciences High School Science Fair Projects

Chemistry High School Science Fair Projects

Physics high school science fair projects, engineering high school stem fair projects, biology and life science high school science fair projects.

Explore the living world with these biology science project ideas, learning more about plants, animals, the environment, and much more.

Extract DNA from an onion

Difficulty: Medium / Materials: Medium

You don’t need a lot of supplies to perform this experiment, but it’s impressive nonetheless. Turn this into a science fair project by trying it with other fruits and vegetables too.

Re-create Mendel’s pea plant experiment

Difficulty: Medium / Materials: Medium ADVERTISEMENT

Gregor Mendel’s pea plant experiments were some of the first to explore inherited traits and genetics. Try your own cross-pollination experiments with fast-growing plants like peas or beans.

Make plants move with light

By this age, kids know that many plants move toward sunlight, a process known as phototropism. So high school science fair projects on this topic need to introduce variables into the process, like covering seedling parts with different materials to see the effects.

Test the 5-second rule

We’d all like to know the answer to this one: Is it really safe to eat food you’ve dropped on the floor? Design and conduct an experiment to find out (although we think we might already know the answer).

Find out if color affects taste

Just how interlinked are all our senses? Does the sight of food affect how it tastes? Find out with a fun food science fair project like this one!

See the effects of antibiotics on bacteria

Test tubes containing various bacteria

Difficulty: Medium / Materials: Advanced

Bacteria can be divided into two groups: gram-positive and gram-negative. In this experiment, students first determine the two groups, then try the effects of various antibiotics on them. You can get a gram stain kit , bacillus cereus and rhodospirillum rubrum cultures, and antibiotic discs from Home Science Tools.

Learn more: Antibiotics Project at Home Science Tools

Witness the carbon cycle in action

Test tubes filled with plants and green and blue liquid

Experiment with the effects of light on the carbon cycle. Make this science fair project even more interesting by adding some small aquatic animals like snails or fish into the mix.

Learn more: Carbon Cycle at Science Lessons That Rock

Look for cell mitosis in an onion

Cell mitosis (division) is actually easy to see in action when you look at onion root tips under a microscope. Students will be amazed to see science theory become science reality right before their eyes. Adapt this lab into a high school science fair project by applying the process to other organisms too.

Test the effects of disinfectants

Petri dish divided in half with bacteria and paper disks on the surface

Grow bacteria in a petri dish along with paper disks soaked in various antiseptics and disinfectants. You’ll be able to see which ones effectively inhibit bacteria growth.

Learn more: Effectiveness of Antiseptics and Disinfectants at Amy Brown Science

Pit hydroponics against soil

Growing vegetables without soil (hydroponics) is a popular trend, allowing people to garden just about anywhere.

More Life Sciences and Biology Science Fair Projects for High School

Use these questions and ideas to design your own experiment:

  • Explore ways to prevent soil erosion.
  • What are the most accurate methods of predicting various weather patterns?
  • Try out various fertilization methods to find the best and safest way to increase crop yield.
  • What’s the best way to prevent mold growth on food for long-term storage?
  • Does exposure to smoke or other air pollutants affect plant growth?
  • Compare the chemical and/or bacterial content of various water sources (bottled, tap, spring, well water, etc.).
  • Explore ways to clean up after an oil spill on land or water.
  • Conduct a wildlife field survey in a given area and compare it to results from previous surveys.
  • Find a new use for plastic bottles or bags to keep them out of landfills.
  • Devise a way to desalinate seawater and make it safe to drink.

Bunsen burners, beakers and test tubes, and the possibility of (controlled) explosions? No wonder chemistry is such a popular topic for high school science fair projects!

Break apart covalent bonds

Tub of water with battery leads in it

Break the covalent bond of H 2 O into H and O with this simple experiment. You only need simple supplies for this one. Turn it into a science fair project by changing up the variables—does the temperature of the water matter? What happens if you try this with other liquids?

Learn more: Covalent Bonds at Teaching Without Chairs

Measure the calories in various foods

Are the calorie counts on your favorite snacks accurate? Build your own calorimeter and find out! This kit from Home Science Tools has all the supplies you’ll need.

Detect latent fingerprints

Fingerprint divided into two, one half yellow and one half black

Forensic science is engrossing and can lead to important career opportunities too. Explore the chemistry needed to detect latent (invisible) fingerprints, just like they do for crime scenes!

Learn more: Fingerprints Project at Hub Pages

Use Alka-Seltzer to explore reaction rate

Difficulty: Easy / Materials: Easy

Tweak this basic concept to create a variety of high school chemistry science fair projects. Change the temperature, surface area, pressure, and more to see how reaction rates change.

Determine whether sports drinks provide more electrolytes than OJ

Are those pricey sports drinks really worth it? Try this experiment to find out. You’ll need some special equipment for this one; buy a complete kit at Home Science Tools .

Turn flames into a rainbow

You’ll need to get your hands on a few different chemicals for this experiment, but the wow factor will make it worth the effort! Make it a science project by seeing if different materials, air temperature, or other factors change the results.

Discover the size of a mole

Supplies needed for mole experiment, included scale, salt, and chalk

The mole is a key concept in chemistry, so it’s important to ensure students really understand it. This experiment uses simple materials like salt and chalk to make an abstract concept more concrete. Make it a project by applying the same procedure to a variety of substances, or determining whether outside variables have an effect on the results.

Learn more: How Big Is a Mole? at Amy Brown Science

Cook up candy to learn mole and molecule calculations

Aluminum foil bowl filled with bubbling liquid over a bunsen burner

This edible experiment lets students make their own peppermint hard candy while they calculate mass, moles, molecules, and formula weights. Tweak the formulas to create different types of candy and make this into a sweet science fair project!

Learn more: Candy Chemistry at Dunigan Science on TpT

Make soap to understand saponification

Colorful soaps from saponification science experiments for high school

Take a closer look at an everyday item: soap! Use oils and other ingredients to make your own soap, learning about esters and saponification. Tinker with the formula to find one that fits a particular set of parameters.

Learn more: Saponification at Chemistry Solutions on TpT

Uncover the secrets of evaporation

Explore the factors that affect evaporation, then come up with ways to slow them down or speed them up for a simple science fair project.

Learn more: Evaporation at Science Projects

More Chemistry Science Fair Projects for High School

These questions and ideas can spark ideas for a unique experiment:

  • Compare the properties of sugar and artificial sweeteners.
  • Explore the impact of temperature, concentration, and seeding on crystal growth.
  • Test various antacids on the market to find the most effective product.
  • What is the optimum temperature for yeast production when baking bread from scratch?
  • Compare the vitamin C content of various fruits and vegetables.
  • How does temperature affect enzyme-catalyzed reactions?
  • Investigate the effects of pH on an acid-base chemical reaction.
  • Devise a new natural way to test pH levels (such as cabbage leaves).
  • What’s the best way to slow down metal oxidation (the form of rust)?
  • How do changes in ingredients and method affect the results of a baking recipe?

When you think of physics science projects for high school, the first thing that comes to mind is probably the classic build-a-bridge. But there are plenty of other ways for teens to get hands-on with physics concepts. Here are some to try.

Remove the air in a DIY vacuum chamber

DIY vacuum chamber made from a jar and large hypodermic needle

You can use a vacuum chamber to do lots of cool high school science fair projects, but a ready-made one can be expensive. Try this project to make your own with basic supplies.

Learn more: Vacuum Chamber at Instructables

Put together a mini Tesla coil

Looking for a simple but showy high school science fair project? Build your own mini Tesla coil and wow the crowd!

Boil water in a paper cup

Logic tells us we shouldn’t set a paper cup over a heat source, right? Yet it’s actually possible to boil water in a paper cup without burning the cup up! Learn about heat transfer and thermal conductivity with this experiment. Go deeper by trying other liquids like honey to see what happens.

Build a better light bulb

Emulate Edison and build your own simple light bulb. You can turn this into a science fair project by experimenting with different types of materials for filaments.

Measure the speed of light—with your microwave

Grab an egg and head to your microwave for this surprisingly simple experiment. By measuring the distance between cooked portions of egg whites, you’ll be able to calculate the wavelength of the microwaves in your oven and, in turn, the speed of light.

Generate a Lichtenberg figure

Lichtenberg figure generated on a sheet of Plexiglass

See electricity in action when you generate and capture a Lichtenberg figure with polyethylene sheets, wood, or even acrylic and toner. Change the electrical intensity and materials to see what types of patterns you can create.

Learn more: Lichtenberg Figure at Science Notes

Explore the power of friction with sticky note pads

Difficulty: Medium / Materials: Basic

Ever try to pull a piece of paper out of the middle of a big stack? It’s harder than you think it would be! That’s due to the power of friction. In this experiment, students interleave the sheets of two sticky note pads, then measure how much weight it takes to pull them apart. The results are astonishing!

Build a cloud chamber to prove background radiation

Ready to dip your toe into particle physics? Learn about background radiation and build a cloud chamber to prove the existence of muons.

Measure the effect of temperature on resistance

A beaker with a tungsten rod, connected to a multimeter

This is a popular and classic science fair experiment in physics. You’ll need a few specialized supplies, but they’re pretty easy to find.

Learn more: Temperature and Resistance at Science Project

Launch the best bottle rocket

A basic bottle rocket is pretty easy to build, but it opens the door to lots of different science fair projects. Design a powerful launcher, alter the rocket so it flies higher or farther, or use only recycled materials for your flyer.

More Physics Science Fair Projects for High School

Design your own experiment in response to these questions and prompts.

  • Determine the most efficient solar panel design and placement.
  • What’s the best way to eliminate friction between two objects?
  • Explore the best methods of insulating an object against heat loss.
  • What effect does temperature have on batteries when stored for long periods of time?
  • Test the effects of magnets or electromagnetic fields on plants or other living organisms.
  • Determine the best angle and speed of a bat swing in baseball.
  • What’s the best way to soundproof an area or reduce noise produced by an item?
  • Explore methods for reducing air resistance in automotive design.
  • Use the concepts of torque and rotation to perfect a golf swing.
  • Compare the strength and durability of various building materials.

Many schools are changing up their science fairs to STEM fairs, to encourage students with an interest in engineering to participate. Many great engineering science fair projects start with a STEM challenge, like those shown here. Use these ideas to spark a full-blown project to build something new and amazing!

Construct a model maglev train

Maglev model train built from magnets and wood craft sticks on green felt

Maglev trains may just be the future of mass transportation. Build a model at home, and explore ways to implement the technology on a wider basis.

Learn more: Maglev Model Train at Supermagnete

Design a more efficient wind turbine

Wind energy is renewable, making it a good solution for the fossil fuel problem. For a smart science fair project, experiment to find the most efficient wind turbine design for a given situation.

Re-create Da Vinci’s flying machine

Da Vinci flying machine built from a paper cup and other basic supplies

Da Vinci sketched several models of “flying machines” and hoped to soar through the sky. Do some research into his models and try to reconstruct one of your own.

Learn more: Da Vinci Flying Machine at Student Savvy

Design a heart-rate monitor

Smartwatches are ubiquitous these days, so pretty much anyone can wear a heart-rate monitor on their wrist. But do they work any better than one you can build yourself? Get the specialized items you need like the Arduino LilyPad Board on Amazon.

Race 3D printed cars

Simple 3-D printed race cars with vegetables strapped to them (Science Experiments for High School)

3D printers are a marvel of the modern era, and budding engineers should definitely learn to use them. Use Tinkercad or a similar program to design and print race cars that can support a defined weight, then see which can roll the fastest! (No 3D printer in your STEM lab? Check the local library. Many of them have 3D printers available for patrons to use.)

Learn more: 3D Printed Cars at Instructables

Grow veggies in a hydroponic garden

Vertical hydroponic garden made from PVC pipes and aluminum downspouts

Hydroponics is the gardening wave of the future, making it easy to grow plants anywhere with minimal soil required. For a science fair STEM engineering challenge, design and construct your own hydroponic garden capable of growing vegetables to feed a family. This model is just one possible option.

Learn more: Hydroponics at Instructables

Grab items with a mechanical claw

KiwiCo hydraulic claw kit (Science Experiments for High School)

Delve into robotics with this engineering project. This kit includes all the materials you need, with complete video instructions. Once you’ve built the basic structure, tinker around with the design to improve its strength, accuracy, or other traits.

Learn more: Hydraulic Claw at KiwiCo

Construct a crystal radio

Homemade crystal radio set (Science Experiments for High School)

Return to the good old days and build a radio from scratch. This makes a cool science fair project if you experiment with different types of materials for the antenna. It takes some specialized equipment, but fortunately, Home Science Tools has an all-in-one kit for this project.

Learn more: Crystal Radio at Scitoys.com

Build a burglar alarm

Simple electronic burglar alarm with a cell phone

The challenge? Set up a system to alert you when someone has broken into your house or classroom. This can take any form students can dream up, and you can customize this STEM high school science experiment for multiple skill levels. Keep it simple with an alarm that makes a sound that can be heard from a specified distance. Or kick it up a notch and require the alarm system to send a notification to a cell phone, like the project at the link.

Learn more: Intruder Alarm at Instructables

Walk across a plastic bottle bridge

Students sitting on a large bridge made of plastic bottles

Balsa wood bridges are OK, but this plastic bottle bridge is really impressive! In fact, students can build all sorts of structures using the concept detailed at the link. It’s the ultimate upcycled STEM challenge!

Learn more: TrussFab Structures at Instructables

Looking for more science content? Check out the Best Science Websites for Middle and High School .

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Explore high school science fair projects in biology, chemistry, physics, engineering and more, from easy projects to advanced ideas.

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37 Cool Science Experiments for Kids to Do at Home

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General Education

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Are you looking for cool science experiments for kids at home or for class? We've got you covered! We've compiled a list of 37 of the best science experiments for kids that cover areas of science ranging from outer space to dinosaurs to chemical reactions. By doing these easy science experiments, kids will make their own blubber and see how polar bears stay warm, make a rain cloud in a jar to observe how weather changes, create a potato battery that'll really power a lightbulb, and more.

Below are 37 of the best science projects for kids to try. For each one we include a description of the experiment, which area(s) of science it teaches kids about, how difficult it is (easy/medium/hard), how messy it is (low/medium/high), and the materials you need to do the project. Note that experiments labelled "hard" are definitely still doable; they just require more materials or time than most of these other science experiments for kids.

#1: Insect Hotels

  • Teaches Kids About: Zoology
  • Difficulty Level: Medium
  • Messiness Level: Medium

Insect hotels can be as simple (just a few sticks wrapped in a bundle) or as elaborate as you'd like, and they're a great way for kids to get creative making the hotel and then get rewarded by seeing who has moved into the home they built. After creating a hotel with hiding places for bugs, place it outside (near a garden is often a good spot), wait a few days, then check it to see who has occupied the "rooms." You can also use a bug ID book or app to try and identify the visitors.

  • Materials Needed
  • Shadow box or other box with multiple compartments
  • Hot glue gun with glue
  • Sticks, bark, small rocks, dried leaves, bits of yarn/wool, etc.

insect hotel

#2: DIY Lava Lamp

  • Teaches Kids About: Chemical reactions
  • Difficulty Level: Easy

In this quick and fun science experiment, kids will mix water, oil, food coloring, and antacid tablets to create their own (temporary) lava lamp . Oil and water don't mix easily, and the antacid tablets will cause the oil to form little globules that are dyed by the food coloring. Just add the ingredients together and you'll end up with a homemade lava lamp!

  • Vegetable oil
  • Food coloring
  • Antacid tablets

#3: Magnetic Slime

  • Teaches Kids About: Magnets
  • Messiness Level: High (The slime is black and will slightly dye your fingers when you play with it, but it washes off easily.)

A step up from silly putty and Play-Doh, magnetic slime is fun to play with but also teaches kids about magnets and how they attract and repel each other. Some of the ingredients you aren't likely to have around the house, but they can all be purchased online. After mixing the ingredients together, you can use the neodymium magnet (regular magnets won't be strong enough) to make the magnetic slime move without touching it!

  • Liquid starch
  • Adhesive glue
  • Iron oxide powder
  • Neodymium (rare earth) magnet

#4: Baking Soda Volcanoes

  • Teaches Kids About: Chemical reactions, earth science
  • Difficulty Level: Easy-medium
  • Messiness Level: High

Baking soda volcanoes are one of the classic science projects for kids, and they're also one of the most popular. It's hard to top the excitement of a volcano erupting inside your home. This experiment can also be as simple or in-depth as you like. For the eruption, all you need is baking soda and vinegar (dishwashing detergent adds some extra power to the eruption), but you can make the "volcano" as elaborate and lifelike as you wish.

  • Baking soda
  • Dishwashing detergent
  • Large mason jar or soda bottle
  • Playdough or aluminum foil to make the "volcano"
  • Additional items to place around the volcano (optional)
  • Food coloring (optional)

#5: Tornado in a Jar

  • Teaches Kids About: Weather
  • Messiness Level: Low

This is one of the quick and easy and science experiments for kids to teach them about weather. It only takes about five minutes and a few materials to set up, but once you have it ready you and your kids can create your own miniature tornado whose vortex you can see and the strength of which you can change depending on how quickly you swirl the jar.

  • Glitter (optional)

#6: Colored Celery Experiment

  • Teaches Kids About: Plants

This celery science experiment is another classic science experiment that parents and teachers like because it's easy to do and gives kids a great visual understanding of how transpiration works and how plants get water and nutrients. Just place celery stalks in cups of colored water, wait at least a day, and you'll see the celery leaves take on the color of the water. This happens because celery stalks (like other plants) contain small capillaries that they use to transport water and nutrients throughout the plant.

  • Celery stalks (can also use white flowers or pale-colored cabbage)

#7: Rain Cloud in a Jar

This experiment teaches kids about weather and lets them learn how clouds form by making their own rain cloud . This is definitely a science project that requires adult supervision since it uses boiling water as one of the ingredients, but once you pour the water into a glass jar, the experiment is fast and easy, and you'll be rewarded with a little cloud forming in the jar due to condensation.

  • Glass jar with a lid
  • Boiling water
  • Aerosol hairspray

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#8: Edible Rock Candy

  • Teaches Kids About: Crystal formation

It takes about a week for the crystals of this rock candy experiment to form, but once they have you'll be able to eat the results! After creating a sugar solution, you'll fill jars with it and dangle strings in them that'll slowly become covered with the crystals. This experiment involves heating and pouring boiling water, so adult supervision is necessary, once that step is complete, even very young kids will be excited to watch crystals slowly form.

  • Large saucepan
  • Clothespins
  • String or small skewers
  • Candy flavoring (optional)

#9: Water Xylophone

  • Teaches Kids About: Sound waves

With just some basic materials you can create your own musical instrument to teach kids about sound waves. In this water xylophone experiment , you'll fill glass jars with varying levels of water. Once they're all lined up, kids can hit the sides with wooden sticks and see how the itch differs depending on how much water is in the jar (more water=lower pitch, less water=higher pitch). This is because sound waves travel differently depending on how full the jars are with water.

  • Wooden sticks/skewers

#10: Blood Model in a Jar

  • Teaches Kids About: Human biology

This blood model experiment is a great way to get kids to visual what their blood looks like and how complicated it really is. Each ingredient represents a different component of blood (plasma, platelets, red blood cells, etc.), so you just add a certain amount of each to the jar, swirl it around a bit, and you have a model of what your blood looks like.

  • Empty jar or bottle
  • Red cinnamon candies
  • Marshmallows or dry white lima beans
  • White sprinkles

#11: Potato Battery

  • Teaches Kids About: Electricity
  • Difficulty Level: Hard

Did you know that a simple potato can produce enough energy to keep a light bulb lit for over a month? You can create a simple potato battery to show kids. There are kits that provide all the necessary materials and how to set it up, but if you don't purchase one of these it can be a bit trickier to gather everything you need and assemble it correctly. Once it's set though, you'll have your own farm grown battery!

  • Fresh potato
  • Galvanized nail
  • Copper coin

body_pulley

#12: Homemade Pulley

  • Teaches Kids About: Simple machines

This science activity requires some materials you may not already have, but once you've gotten them, the homemade pulley takes only a few minutes to set up, and you can leave the pulley up for your kids to play with all year round. This pulley is best set up outside, but can also be done indoors.

  • Clothesline
  • 2 clothesline pulleys

#13: Light Refraction

  • Teaches Kids About: Light

This light refraction experiment takes only a few minutes to set up and uses basic materials, but it's a great way to show kids how light travels. You'll draw two arrows on a sticky note, stick it to the wall, then fill a clear water bottle with water. As you move the water bottle in front of the arrows, the arrows will appear to change the direction they're pointing. This is because of the refraction that occurs when light passes through materials like water and plastic.

  • Sticky note
  • Transparent water bottle

#14: Nature Journaling

  • Teaches Kids About: Ecology, scientific observation

A nature journal is a great way to encourage kids to be creative and really pay attention to what's going on around them. All you need is a blank journal (you can buy one or make your own) along with something to write with. Then just go outside and encourage your children to write or draw what they notice. This could include descriptions of animals they see, tracings of leaves, a drawing of a beautiful flower, etc. Encourage your kids to ask questions about what they observe (Why do birds need to build nests? Why is this flower so brightly colored?) and explain to them that scientists collect research by doing exactly what they're doing now.

  • Blank journal or notebook
  • Pens/pencils/crayons/markers
  • Tape or glue for adding items to the journal

#15: DIY Solar Oven

  • Teaches Kids About: Solar energy

This homemade solar oven definitely requires some adult help to set up, but after it's ready you'll have your own mini oven that uses energy from the sun to make s'mores or melt cheese on pizza. While the food is cooking, you can explain to kids how the oven uses the sun's rays to heat the food.

  • Aluminum foil
  • Knife or box cutter
  • Permanent marker
  • Plastic cling wrap
  • Black construction paper

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#16: Animal Blubber Simulation

  • Teaches Kids About: Ecology, zoology

If your kids are curious about how animals like polar bears and seals stay warm in polar climates, you can go beyond just explaining it to them; you can actually have them make some of their own blubber and test it out. After you've filled up a large bowl with ice water and let it sit for a few minutes to get really cold, have your kids dip a bare hand in and see how many seconds they can last before their hand gets too cold. Next, coat one of their fingers in shortening and repeat the experiment. Your child will notice that, with the shortening acting like a protective layer of blubber, they don't feel the cold water nearly as much.

  • Bowl of ice water

#17: Static Electricity Butterfly

This experiment is a great way for young kids to learn about static electricity, and it's more fun and visual than just having them rub balloons against their heads. First you'll create a butterfly, using thick paper (such as cardstock) for the body and tissue paper for the wings. Then, blow up the balloon, have the kids rub it against their head for a few seconds, then move the balloon to just above the butterfly's wings. The wings will move towards the balloon due to static electricity, and it'll look like the butterfly is flying.

  • Tissue paper
  • Thick paper
  • Glue stick/glue

#18: Edible Double Helix

  • Teaches Kids About: Genetics

If your kids are learning about genetics, you can do this edible double helix craft to show them how DNA is formed, what its different parts are, and what it looks like. The licorice will form the sides or backbone of the DNA and each color of marshmallow will represent one of the four chemical bases. Kids will be able to see that only certain chemical bases pair with each other.

  • 2 pieces of licorice
  • 12 toothpicks
  • Small marshmallows in 4 colors (9 of each color)
  • 5 paperclips

#19: Leak-Proof Bag

  • Teaches Kids About: Molecules, plastics

This is an easy experiment that'll appeal to kids of a variety of ages. Just take a zip-lock bag, fill it about ⅔ of the way with water, and close the top. Next, poke a few sharp objects (like bamboo skewers or sharp pencils) through one end and out the other. At this point you may want to dangle the bag above your child's head, but no need to worry about spills because the bag won't leak? Why not? It's because the plastic used to make zip-lock bags is made of polymers, or long chains of molecules that'll quickly join back together when they're forced apart.

  • Zip-lock bags
  • Objects with sharp ends (pencils, bamboo skewers, etc.)

body_leaves

#20: How Do Leaves Breathe?

  • Teaches Kids About: Plant science

It takes a few hours to see the results of this leaf experiment , but it couldn't be easier to set up, and kids will love to see a leaf actually "breathing." Just get a large-ish leaf, place it in a bowl (glass works best so you can see everything) filled with water, place a small rock on the leaf to weigh it down, and leave it somewhere sunny. Come back in a few hours and you'll see little bubbles in the water created when the leaf releases the oxygen it created during photosynthesis.

  • Large bowl (preferably glass)
  • Magnifying glass (optional)

#21: Popsicle Stick Catapults

Kids will love shooting pom poms out of these homemade popsicle stick catapults . After assembling the catapults out of popsicle sticks, rubber bands, and plastic spoons, they're ready to launch pom poms or other lightweight objects. To teach kids about simple machines, you can ask them about how they think the catapults work, what they should do to make the pom poms go a farther/shorter distance, and how the catapult could be made more powerful.

  • Popsicle sticks
  • Rubber bands
  • Plastic spoons
  • Paint (optional)

#22: Elephant Toothpaste

You won't want to do this experiment near anything that's difficult to clean (outside may be best), but kids will love seeing this " elephant toothpaste " crazily overflowing the bottle and oozing everywhere. Pour the hydrogen peroxide, food coloring, and dishwashing soap into the bottle, and in the cup mix the yeast packet with some warm water for about 30 seconds. Then, add the yeast mixture to the bottle, stand back, and watch the solution become a massive foamy mixture that pours out of the bottle! The "toothpaste" is formed when the yeast removed the oxygen bubbles from the hydrogen peroxide which created foam. This is an exothermic reaction, and it creates heat as well as foam (you can have kids notice that the bottle became warm as the reaction occurred).

  • Clean 16-oz soda bottle
  • 6% solution of hydrogen peroxide
  • 1 packet of dry yeast
  • Dishwashing soap

#23: How Do Penguins Stay Dry?

Penguins, and many other birds, have special oil-producing glands that coat their feathers with a protective layer that causes water to slide right off them, keeping them warm and dry. You can demonstrate this to kids with this penguin craft by having them color a picture of a penguin with crayons, then spraying the picture with water. The wax from the crayons will have created a protective layer like the oil actual birds coat themselves with, and the paper won't absorb the water.

  • Penguin image (included in link)
  • Spray bottle
  • Blue food coloring (optional)

body_erosion

#24: Rock Weathering Experiment

  • Teaches Kids About: Geology

This mechanical weathering experiment teaches kids why and how rocks break down or erode. Take two pieces of clay, form them into balls, and wrap them in plastic wrap. Then, leave one out while placing the other in the freezer overnight. The next day, unwrap and compare them. You can repeat freezing the one piece of clay every night for several days to see how much more cracked and weathered it gets than the piece of clay that wasn't frozen. It may even begin to crumble. This weathering also happens to rocks when they are subjected to extreme temperatures, and it's one of the causes of erosion.

  • Plastic wrap

#25: Saltwater Density

  • Teaches Kids About: Water density

For this saltwater density experiment , you'll fill four clear glasses with water, then add salt to one glass, sugar to one glass, and baking soda to one glass, leaving one glass with just water. Then, float small plastic pieces or grapes in each of the glasses and observe whether they float or not. Saltwater is denser than freshwater, which means some objects may float in saltwater that would sink in freshwater. You can use this experiment to teach kids about the ocean and other bodies of saltwater, such as the Dead Sea, which is so salty people can easily float on top of it.

  • Four clear glasses
  • Lightweight plastic objects or small grapes

#26: Starburst Rock Cycle

With just a package of Starbursts and a few other materials, you can create models of each of the three rock types: igneous, sedimentary, and metamorphic. Sedimentary "rocks" will be created by pressing thin layers of Starbursts together, metamorphic by heating and pressing Starbursts, and igneous by applying high levels of heat to the Starbursts. Kids will learn how different types of rocks are forms and how the three rock types look different from each other.

  • Toaster oven

#27: Inertia Wagon Experiment

  • Teaches Kids About: Inertia

This simple experiment teaches kids about inertia (as well as the importance of seatbelts!). Take a small wagon, fill it with a tall stack of books, then have one of your children pull it around then stop abruptly. They won't be able to suddenly stop the wagon without the stack of books falling. You can have the kids predict which direction they think the books will fall and explain that this happens because of inertia, or Newton's first law.

  • Stack of books

#28: Dinosaur Tracks

  • Teaches Kids About: Paleontology

How are some dinosaur tracks still visible millions of years later? By mixing together several ingredients, you'll get a claylike mixture you can press your hands/feet or dinosaur models into to make dinosaur track imprints . The mixture will harden and the imprints will remain, showing kids how dinosaur (and early human) tracks can stay in rock for such a long period of time.

  • Used coffee grounds
  • Wooden spoon
  • Rolling pin

#29: Sidewalk Constellations

  • Teaches Kids About: Astronomy

If you do this sidewalk constellation craft , you'll be able to see the Big Dipper and Orion's Belt in the daylight. On the sidewalk, have kids draw the lines of constellations (using constellation diagrams for guidance) and place stones where the stars are. You can then look at astronomy charts to see where the constellations they drew will be in the sky.

  • Sidewalk chalk
  • Small stones
  • Diagrams of constellations

#30: Lung Model

By building a lung model , you can teach kids about respiration and how their lungs work. After cutting off the bottom of a plastic bottle, you'll stretch a balloon around the opened end and insert another balloon through the mouth of the bottle. You'll then push a straw through the neck of the bottle and secure it with a rubber band and play dough. By blowing into the straw, the balloons will inflate then deflate, similar to how our lungs work.

  • Plastic bottle
  • Rubber band

body_dinosaurbones

#31: Homemade Dinosaur Bones

By mixing just flour, salt, and water, you'll create a basic salt dough that'll harden when baked. You can use this dough to make homemade dinosaur bones and teach kids about paleontology. You can use books or diagrams to learn how different dinosaur bones were shaped, and you can even bury the bones in a sandpit or something similar and then excavate them the way real paleontologists do.

  • Images of dinosaur bones

#32: Clay and Toothpick Molecules

There are many variations on homemade molecule science crafts . This one uses clay and toothpicks, although gumdrops or even small pieces of fruit like grapes can be used in place of clay. Roll the clay into balls and use molecule diagrams to attach the clay to toothpicks in the shape of the molecules. Kids can make numerous types of molecules and learn how atoms bond together to form molecules.

  • Clay or gumdrops (in four colors)
  • Diagrams of molecules

#33: Articulated Hand Model

By creating an articulated hand model , you can teach kids about bones, joints, and how our hands are able to move in many ways and accomplish so many different tasks. After creating a hand out of thin foam, kids will cut straws to represent the different bones in the hand and glue them to the fingers of the hand models. You'll then thread yarn (which represents tendons) through the straws, stabilize the model with a chopstick or other small stick, and end up with a hand model that moves and bends the way actual human hands do.

  • Straws (paper work best)
  • Twine or yarn

#34: Solar Energy Experiment

  • Teaches Kids About: Solar energy, light rays

This solar energy science experiment will teach kids about solar energy and how different colors absorb different amounts of energy. In a sunny spot outside, place six colored pieces of paper next to each other, and place an ice cube in the middle of each paper. Then, observe how quickly each of the ice cubes melt. The ice cube on the black piece of paper will melt fastest since black absorbs the most light (all the light ray colors), while the ice cube on the white paper will melt slowest since white absorbs the least light (it instead reflects light). You can then explain why certain colors look the way they do. (Colors besides black and white absorb all light except for the one ray color they reflect; this is the color they appear to us.)

  • 6 squares of differently colored paper/cardstock (must include black paper and white paper)

#35: How to Make Lightning

  • Teaches Kids About: Electricity, weather

You don't need a storm to see lightning; you can actually create your own lightning at home . For younger kids this experiment requires adult help and supervision. You'll stick a thumbtack through the bottom of an aluminum tray, then stick the pencil eraser to the pushpin. You'll then rub the piece of wool over the aluminum tray, and then set the tray on the Styrofoam, where it'll create a small spark/tiny bolt of lightning!

  • Pencil with eraser
  • Aluminum tray or pie tin
  • Styrofoam tray

#36: Tie-Dyed Milk

  • Teaches Kids About: Surface tension

For this magic milk experiment , partly fill a shallow dish with milk, then add a one drop of each food coloring color to different parts of the milk. The food coloring will mostly stay where you placed it. Next, carefully add one drop of dish soap to the middle of the milk. It'll cause the food coloring to stream through the milk and away from the dish soap. This is because the dish soap breaks up the surface tension of the milk by dissolving the milk's fat molecules.

  • Shallow dish
  • Milk (high-fat works best)

body_stalactite

#37: How Do Stalactites Form?

Have you ever gone into a cave and seen huge stalactites hanging from the top of the cave? Stalactites are formed by dripping water. The water is filled with particles which slowly accumulate and harden over the years, forming stalactites. You can recreate that process with this stalactite experiment . By mixing a baking soda solution, dipping a piece of wool yarn in the jar and running it to another jar, you'll be able to observe baking soda particles forming and hardening along the yarn, similar to how stalactites grow.

  • Safety pins
  • 2 glass jars

Summary: Cool Science Experiments for Kids

Any one of these simple science experiments for kids can get children learning and excited about science. You can choose a science experiment based on your child's specific interest or what they're currently learning about, or you can do an experiment on an entirely new topic to expand their learning and teach them about a new area of science. From easy science experiments for kids to the more challenging ones, these will all help kids have fun and learn more about science.

What's Next?

Are you also interested in pipe cleaner crafts for kids? We have a guide to some of the best pipe cleaner crafts to try!

Looking for multiple different slime recipes? We tell you how to make slimes without borax and without glue as well as how to craft the ultimate super slime .

Want to learn more about clouds? Learn how to identify every cloud in the sky with our guide to the 10 types of clouds .

Want to know the fastest and easiest ways to convert between Fahrenheit and Celsius? We've got you covered! Check out our guide to the best ways to convert Celsius to Fahrenheit (or vice versa) .

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Christine graduated from Michigan State University with degrees in Environmental Biology and Geography and received her Master's from Duke University. In high school she scored in the 99th percentile on the SAT and was named a National Merit Finalist. She has taught English and biology in several countries.

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    C2H4O2 + NaHCO3 -> NaC2H3O2 + H2O + CO2. vinegar + sodium bicarbonate -> sodium acetate + water + carbon dioxide. Some of our favourite baking soda and vinegar science activities of all time include Bottle Rockets, Fireworks Experiment, Baking Soda Oobleck, and Hatching Dinosaur Eggs. No matter which one you pick, you must try at least one ...

  13. List of Science Fair Ideas and Experiments You Can Do.

    Remember, find something that interests you, and have fun with it. To download and print this list of ideas CLICK HERE. Here's a list of over 30 Science Fair ideas to get you started. Then download science experiments, and watch experiment videos to inspire your project.

  14. 100+ Easy & FUN Science Fair Project Ideas

    Other Fun & Easy Science Project Ideas. Toilet Paper Comparisons ~ Pink Stripey Socks. Egg Drop Challenge. Press n' Seal vs. Saran Wrap. Hockey Science Experiment ~ Creative Family Fun. I hope you found an idea that will work for your little scientists next science fair project.

  15. 70 Best High School Science Fair Projects in Every Subject

    Feb 6, 2024. The cool thing about high school science fair projects is that kids are old enough to tackle some pretty amazing concepts. Some science experiments for high school are just advanced versions of simpler projects they did when they were younger, with detailed calculations or fewer instructions. Other projects involve fire, chemicals ...

  16. Scientific Method Experiments for Kids: Easy & Fun Setup

    Experiment: Step 1: Start with one brand of bubblegum. Step 2: Each person chews the gum for 5 minutes. Step 3: Begin blowing bubbles with your piece of gum. Step 4: Blow 5 bubbles with that brand of gum. Step 5: Measure each bubble with the ruler and write down the results.

  17. 5th Grade Science Project Ideas with Hypothesis

    Top 100 5th Grade Science Project Ideas with Hypothesis. 1. The Color-Changing Milk Hypothesis: Hypothesis: Mixing milk, dish soap, and food coloring will create a mesmerizing display of color. 2. The Vinegar and Baking Soda Volcano Hypothesis: Hypothesis: When vinegar reacts with baking soda, it will create a volcanic eruption.

  18. 37 Cool Science Experiments for Kids to Do at Home

    Difficulty Level: Easy. Messiness Level: Medium. In this quick and fun science experiment, kids will mix water, oil, food coloring, and antacid tablets to create their own (temporary) lava lamp. Oil and water don't mix easily, and the antacid tablets will cause the oil to form little globules that are dyed by the food coloring.

  19. Ideas for Controlled Variable Science Projects

    A science project involving plants has controlled variables in the amount of water given to each plant and the amount and kind of soil in which the plant is living. Place one plant in direct sunlight and the other in a shaded area or indoors to conduct the science experiment. Record daily results in the height of the plant.

  20. Easy FIVE MINUTE Science Experiments

    These easy five-minute science experiments are great when you need a quick science activity or demonstration but don't have a long time to prepare or run an investigation.. Each quick and easy science experiment uses materials you probably already have and are quick and easy to prepare, carry out and clear up afterwards.. Ten quick and easy science experiments

  21. Writing a Hypothesis for Your Science Fair Project

    A hypothesis is the best answer to a question based on what is known. Scientists take that best answer and do experiments to see if it still makes sense or if a better answer can be made. When a scientist has a question they want to answer, they research what is already known about the topic. Then, they come up with their best answer to the ...

  22. 50 Simple Science Experiments with Supplies You Already Have

    Plant Themed Simple Science Experiments. Enjoy learning about seeds, plant parts, and how plants grow with these simple science experiments. Learn about how plants soak up water through their stems with a flower experiment for kids from Growing A Jeweled Rose.; Watch seeds sprout as you grow seeds in a jar as seen on Teaching Mama.; Learn about the parts of the seed with a seed coat experiment ...

  23. 15 Hypothesis Examples (2024)

    15 Hypothesis Examples. A hypothesis is defined as a testable prediction, and is used primarily in scientific experiments as a potential or predicted outcome that scientists attempt to prove or disprove (Atkinson et al., 2021; Tan, 2022). In my types of hypothesis article, I outlined 13 different hypotheses, including the directional hypothesis ...