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Cbse, ncert and icse solution online, class 8 science case study question, case study question class 8 science (cbse / ncert board).

Class 8 Science Case Study Question and Answer: CBSE / NCERT Board Class 8 Science Case Study Question prepared by expert Science Teacher. Students can learn Case Based Question / Paragraph Type Question for NCERT Class 8 Science.

There are total 18 chapter Crop Production and Management, Microorganisms: Friend and Foe

, Synthetic Fibres and Plastics, Materials: Metals and Non-Metals, Coal and Petroleum, Combustion and Flame, Conservation of Plants and Animals, Cell – Structure and Functions, Reproduction in Animals, Reaching the Age of Adolescence, Force and Pressure, Friction, Sound, Chemical Effects of Electric Current, Some Natural Phenomena, Light, Stars and the Solar System, Pollution of Air and Water

For any problem during learning any Case or any doubts please comment us. We are always ready to help You.

CBSE Class 8 Science Case Study Question

Chapter 1 Crop Production and Management Case Study Question
Chapter 2 Microorganisms: Friend and Foe Case Study Question
Chapter 3 Synthetic Fibres and Plastics Case Study Question
Chapter 4 Materials: Metals and Non-Metals Case Study Question
Chapter 5 Coal and Petroleum Case Study Question
Chapter 6 Combustion and Flame Case Study Question
Chapter 7 Conservation of Plants and Animals Case Study Question
Chapter 8 Cell – Structure and Functions Case Study Question
Chapter 9 Reproduction in Animals Case Study Question
Chapter 10 Reaching the Age of Adolescence Case Study Question
Chapter 11 Force and Pressure Case Study Question
Chapter 12 Friction Case Study Question
Chapter 13 Sound Case Study Question
Chapter 14 Chemical Effects of Electric Current Case Study Question
Chapter 15 Some Natural Phenomena Case Study Question
Chapter 16 Light Case Study Question
Chapter 17 Stars and the Solar System Case Study Question
Chapter 18 Pollution of Air and Water Case Study Question

What is Case Study Question?

Ans. At case Study there will one paragraph and on the basis of that concept some question will made. Students have to solve that question.

How many marks will have at case based question?

Most of time 5 questions will made from each case. There will 1 or 2 marks for each question.

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Crop Production and Management Class 8 Case Study Questions Science Chapter 1

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Last Updated on August 26, 2024 by XAM CONTENT

Hello students, we are providing case study questions for class 8 science. Case study questions are the new question format that is introduced in CBSE board. The resources for case study questions are very less. So, to help students we have created chapterwise case study questions for class 8 science. In this article, you will find case study questions for cbse class 8 science chapter 1 Crop Production and Management.

	Crop Production and Management
	Case Study Questions
	Competency Based Questions
	CBSE
	8
	Science
	Class 8 Studying Students
	Yes
	Mentioned

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Table of Contents

Case Study Questions on Crop Production and Management

Question 1: A boy named Yash from Gwalior who studies in 8th standard is very fond of plants. He has a small garden in the backyard. Where he’s planted many small plants and takes good care of them. He regularly waters all the plants and uses fertilizers on them to keep them healthy. One day, a small announcement was made in school. In summer vacations, every student needs to do a project according to his/her own interest. Yash decided to grow a plant during summers and present it in front of the whole class as his project. Yash decided to grow peas. So he went to the market and bought the best quality seeds, sand and fertilizers. He came back home, went to the backyard and planted the seed. Started taking good care of it. But as day passed he began to realise that the seeds he planted are getting worse. The plant was unhealthy and very poor in quality. He tried everything but was unable to figure out the solution.

Q.1. Rabi crops are grown in which period? (a) February to June (b) October to March (c) June to November (d) December to January

Difficulty Level: Easy

Ans. Option (b) is correct. Explanation: Rabi crops are grown in winters from October to March and harvested in spring. They require warm climate for germination of seeds and cold climate to grow. Wheat, pea, barley are the examples of rabi crops.

Also read: Crop Production and Management Assertion Reason Questions Class 8 Science

Q.2. Which system is used for irrigation? (a) Water (b) Sprinkler System (c) Drip System (d) Both b and c

Ans. Option (d) is correct. Explanation: Sprinkler system- It is the modern method of irrigation. In this system water passes through a pipe generally by pumping to watering a farm. In this, water is split into tiny drops that falls to the farms. Drip System- It is also a method of modern irrigation. In this system, water falls drop by drop near the roots. it is a type of micro-irrigation which helps to save water.

Q.3. Why Yash’s crops were grown unhealthy?

Ans. Peas are the Rabi Crops which grows in winters i.e. from October to march and requires low temp at the seedling stage.

Q.4. What are the disadvantages of fertilisers?

Difficulty Level: Medium

Ans. The disadvantages of fertilisers are – (i) Fertilisers change the nature of the soil and reduce its fertility. (ii) Inadequate use of fertilisers can lead to pollution.

Chemical Effects of Electric Current Class 8 Case Study Questions Science Chapter 11
Sound Class 8 Case Study Questions Science Chapter 10
Friction Class 8 Case Study Questions Science Chapter 9
Force and Pressure Class 8 Case Study Questions Science Chapter 8
Reaching the Age of Adolescence Class 8 Case Study Questions Science Chapter 7
Reproduction in Animals Class 8 Case Study Questions Science Chapter 6
Conservation of Plants and Animals Class 8 Case Study Questions Science Chapter 5
Combustion and Flame Class 8 Case Study Questions Science Chapter 4

Coal and Petroleum Class 8 Case Study Questions Science Chapter 3

Microorganisms: friend and foe class 8 case study questions science chapter 2, topics from which case study questions may be asked.

Knowing types of crops.
Learning various agricultural practices involved in crop production.
Discussing the irrigation methods used in agriculture.
Knowing how to protect crops from pests.
Discussing harvesting of crops and storage of grains.
Knowing about animal husbandry.

Living organisms need food for their growth and survival. You know that plants can prepare their own food. Animals obtain their food from plants and other animals.

We, human beings also depend on plants for our food. In order to provide food for the increasing population, we need to increase the production of the food we obtain. For this purpose, regular production, proper management and distribution of food are necessary.

This chapter deals with how various agricultural practices are useful to obtain food on large scale. So based on this the above topic list is provided.

Crop Production and Management Class 8 Case Study Questions Science Chapter 1

Case Study Based Questions: Friction | Science Class 8 PDF Download

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Read the given passage below and answer the question:

The force required to overcome friction at the instant an object starts moving from rest is a measure of static friction. On the other hand, the force required to keep the object moving with the same speed is a measure of sliding friction. The sliding friction is slightly smaller than the static friction.

When one body rolls over the surface of another body, the resistance to its motion is called rolling friction. Rolling reduces friction. It is always easier to roll than to slide a body over another.

Q1: The following options show arrangement of types of friction according to decreasing order of applied friction. Select the correct order. (a) Rolling > Sliding > Static (b) Static > Rolling > Sliding (c) Sliding > Static > Rolling (d) Static > Sliding > Rolling Ans: (d)

Q2: In which of the following case one will have to apply maximum force? (a) Riding a bicycle (b) Trying to move a heavy rock from its resting place (c) Swimming in a pool (d) Drilling a hole in a wall Ans: (b)

Q3: Oiling or greasing in machine parts: (a) Increases the friction between the parts (b) Decreases the friction between the parts (c) Both (a) and (b) are correct. (d) None of the above Ans: (b)

Q4: Why static friction is more than sliding friction? Ans: The friction is caused by the interlocking of irregularities in the two surfaces. It is obvious that the force of friction will increase if the two surfaces are pressed harder. The force required to overcome friction at the instant an object starts moving from rest is a measure of static friction. On the other hand, the force required to keep the object moving with the same speed is a measure of sliding friction. When the box starts sliding, the contact points on its surface do not get enough time to lock into the contact points on the floor. So, the sliding friction is slightly smaller than the static friction.

Q5: Classify the given examples into static, sliding, and rolling friction: Static Friction: Papers on a table, car parked on a hill. Sliding Friction: A box sliding on an inclined plane, child playing on slide in a park. Rolling Friction: Ball moving on the ground, tyres of a bus.

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1.0 CBSE Class 8 Science

Physics, Chemistry, and Biology are three cornerstone subjects in CBSE's 8th-class science curriculum that are very important for the scientific learning process. The curriculum for the 8th class is aimed at sharpening students' understanding of fundamental concepts in science and/or igniting in students the insatiable thirst for curiosity about their environment.

The course contains elements related to physics, chemistry, and biology. Foundational concepts are taught in each of these areas that will be quite useful for future science classes.

This blog will cover topics related to CBSE Class 8 Science, such as the class syllabus, important books, and more, which students must know to score well in Class 8 Science.

2.0 CBSE Class 8 Science Syllabus

The CBSE Class 8 syllabus aims to provide students with a profound understanding of mathematical concepts and instil critical thinking skills in them. Instead of focusing on students mastering pre-existing algorithms, the syllabus tries to teach them to understand the basic principles of mathematics. The aim is to make them enjoy the subject and to get them to develop their strategies for solving and posing problems. Mastering the Class 8 Maths syllabus is not solely about being ready for exams. Instead, it is a foundation for excelling in board examinations and developing a solid mathematical mindset. Here's a detailed overview of the CBSE Class 8 Maths syllabus:

The CBSE Class 8 Science syllabus is designed to provide a comprehensive understanding of fundamental scientific concepts across Physics, Chemistry, and Biology. Here is a breakdown of the syllabus:

Chapter 1: Crop Production and Management	1.1 Agricultural Practices 1.2: Basic Practices of Crop Production 1.3: Preparation of Soil 1.4: Sowing 1.5 Adding Manure and Fertilizers 1.6: Irrigation 1.7: Protection from Weeds 1.8: Harvesting 1.9: Storage 1.10: Food from Animals
Chapter 2: Microorganisms: Friend and Foe	2.1 Microorganisms 2.2: Where do Microorganisms Live? 2.3: Microorganisms and Us 2.4: Harmful Microorganisms 2.5: Food Preservation 2.6: Nitrogen Fixation 2.7: Nitrogen cycle
Chapter 3: Coal and Petroleum	5.1 Coal 5.2: Petroleum 5.3: Natural Gas 5.4: Some Natural Resources are Limited
Chapter 4: Combustion and Flame	6.1 What is Combustion? 6.2: How Do We Control Fire? 6.3Types of Combustion 6.4: Flame 6.5: Structure of a Flame 6.6: What is a Fuel? 6.7: Fuel Efficiency
Chapter 5: Conservation of Plants and Animals	7.1 Deforestation and Its Causes 7.2: Consequences of Deforestation 7.3: Conservation of Forest and Wildlife 7.4: Biosphere Reserve 7.5: Flora and Fauna 7.6: Endemic Species 7.7: Wildlife Sanctuary 7.8: National Park 7.9: Red Data Book 7.10: Migration 7.11: Recycling of Paper 7.12: Reforestation
Chapter 6: Reproduction in Animals	9.1 Modes of Reproduction 9.2: Sexual Reproduction 9.3: Asexual Reproduction
Chapter 7: Reaching the Age of Adolescence	10.1 Adolescence and Pubert 10.2 Changes at Pybert Increases Height 10.3 Secondary Sexual Characters 10.4 Roles of Hormones in Initiating Reproductive Function 10.5 Reproductive Phase of Life in Humans 10.6 How is the Sex Of The Baby Determined? 10.7 Jormones Other than Sex Hormones 10.8 Role of Hormones in Completing The Life History of Insects and Frogs 10.9 Reproductive Health
Chapter 8: Force and Pressure	11.1 Force - A Push or a Pull 11.2 Forces Are Due To An Interaction 11.3 Exploring Forces 11.4 A Force Can Change the State of Motion 11.5 Force Can Change the Shape of an Object 11.6 Contact Forces Muscular Force 11.7 Non-contact forces, Magnetic Forces 11.8 Pressure 11.9 Pressure Exerted by Liquids and Gases 11.10 Atmospheric Pressure
Chapter 9: Friction	12.1 Force of Friction 12.2 Factors Affecting Friction 12.3 Friction: A Necessary Evil 12.4 Increasing and Reducing Friction 12.5 Wheels Reduce Friction 12.6 Fluid Friction
Chapter 10: Sound	13.1 Sound Is Produced by a Vibrating Body 13.2 The Sound Produced by Humans 13.3 Sound Needs a Medium for Propagation 13.4 We Hear Sound Through Our Ears 13.5 Amplitude, Perios and Frequency of a Vibration 13.6 Audible and Inaudible Sounds 13.7 Noise and Music 13.8 Noise Pollution
Chapter 11: Chemical Effects of Electric Current	14.1 Do Liquids Conduct Electricity? 14.2 Chemical Effects of Electric Current 14.3 Electroplating
Chapter 12: Some Natural Phenomena	15.1 Lightning 15.2 Charging by Rubbing 15.3 Types of Charge and Their Interaction 15.4 Transfer of Charge 15.5 The Story of Lightning 15.6 Lightning Safety 15.7 Earthquakes
Chapter 13: Light	16.1 What Makes Things Visible 16.2 Laws of Reflection 16.3 Regular and Diffused Reflection 16.4 Reflected Light Can Be Reflected Again 16.5 Multiple Images 16.6 Sunlight - White or Coloured? 16.7 What Is Inside Our Eyes 16.8 Care of the Eyes 16.9 Visually Impaired Persons Can Read and Write 16.10 What is the Braille System?

3.0 CBSE Class 8 Science Books

The CBSE Class 8 Science books are carefully designed based on the syllabus and help students understand science thoroughly. Moreover, these books include all the essential chapters of Physics, Chemistry, and Biology, with lucid and comprehensive explanations that facilitate students' understanding of key ideas. Focusing on these core subjects aims to develop students' critical thinking abilities, analytical skills, and a strong base in the concepts of science to help them learn in subsequent levels.

1. NCERT Textbook for Class 8 Science

CBSE Class 8 Science books in the curriculum have been specially prepared to support students in developing a good understanding of science. It covers all the important topics of Physics, Chemistry, and Biology while providing clear explanations and interesting content that support students in understanding the core concepts of each discipline. By focusing on the disciplines of these subjects, the books aim to enhance the students' ability to think critically, and analytically, and to help them build a solid foundation in science to prepare them for the sciences in upper grades.

2. Additional Reference Books

These books enhance the academic experience for students, by giving a range of questions, particularly advanced-level questions, that encourage students to utilize concepts and deepen their understanding of the course materials. Here are some additional reference resources students can practice with:

Lakhmir Singh
4.0 CBSE Class 8 Science Mock Tests

CBSE Class 8 Science mock tests are customized to fit each student's strengths and weaknesses and are the most effective way to measure exam preparedness in the subjects. After each mock test, students can learn from their mistakes, work on them, and avoid repeating the same mistakes in the final exam.

Mock tests that are followed by the practice encouraged students to develop time management skills which were applied during the real exam. By getting mock tests regularly, you will be able to follow up on your improvement and keep improving at all times. Improve your performance with ALLEN’s Mock Test designed by by some of India's top expert faculties.

5.0 CBSE Class 8 Science Preparation Tips

1. Understanding the Syllabus: Before diving into your studies, it is critical to gain full knowledge of the entire curriculum to avoid overlooking any topics. When you have understood what is required, the best plan is to divide the syllabus into smaller manageable parts. In this way, on the one hand, you can pay attention to the section at a time; on the other hand, you can organize better your study sessions, set realistic goals, and be sure that all topics are covered.

2. Regular revision: To keep information in your mind and make it solid, you need to revise it periodically. Another way is to test yourself on a topic without using the book or notes. Memory is enhanced through this active recall exercise, and areas that require more attention are identified. On top of that, flashcards can be used for reviewing the main ideas, definitions and terms in the course work. By constantly going through these flashcards, one might be able to easily remember what was contained in them keeping the information fresh in one’s mind hence making it easier to retrieve during exams.

3. Practice Regularly: If you want to excel in your examinations, regular practice is very essential. One of the strategies is executing mock tests, this can be an evaluation of personal preparation; hence, one can see where some improvements may be needed. When practising, focus on finishing the questions within the time frame to improve your speed and accuracy.

4. Ask for Doubts: If you are having any doubts or questions while studying, never hesitate to ask for help. Ask your teacher or classmates who can help you understand the problem topics. Learning among one another's classmates helps because the discussion of the concepts confers understanding over and over again, with new insights.

5. Stay Healthy and Focused: Among the most important prerequisites for studying well are health and focus. Therefore, one should get adequate sleep at night to help the mind remain alert and the focus sharp. Wholesome nutrition will help retain one's energy levels throughout the day so that one may focus easily while studying. Breaking up your study sessions by taking small breaks is equally important.

The CBSE Class 8 Science Examination comprises multiple-choice questions, short-answer questions, and long-answer questions. The paper assesses the students' conceptual knowledge and parameters like knowledge application and problem-solving.

Practical work in science forms an intrinsic part, this enables students to put theoretical knowledge into practice, develop scientific inquiry skills, and gain hands-on experience with experiments. Practical activities deepen understanding and enhance problem-solving ability.

In solving numerical problems in Class 8 Science, you should start by carefully reading the problem and identifying the key information given in the problem. Note down the relevant formulae and solve the problem in a stepwise manner, showing all your steps.

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Lesson Plan Gr. 8 Natural Sciences and Technology T3 W8

Grade 8 Lesson Plan on Energy and Change & Systems and Control with focus on the CAPS Topics Energy and Sound, addressing the Content: Vibrations and sound; Making sounds and Noise pollutions. It has activities and resources to guide and assist Teachers, Learners and Parents.

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Home » Extras » TN 9th Social Science Second Mid Term Question Paper 2024 | 2nd Mid Term PYQP Download PDF

TN 9th Social Science Second Mid Term Question Paper 2024 | 2nd Mid Term PYQP Download PDF

TN 9th Social Science Second Mid Term Question Paper 2024 is available for download after exam. The Tamil Nadu Class 9 Social Science 2nd Mid Term Exam Question Paper PDF contains actual questions asked in last held Second mid terminal examination. Therefore while preparing for Social Science exam you can solve this TN 9th Second Mid Term Question Paper to get an idea of what type of questions to expect in upcoming Social Science question paper of 9th Standard 2nd Mid Term Exam.

TN 9th Social Science Second Mid Term Question Paper 2024

The question paper of Tamil Nadu state Second mid term examinations of standard 9th for Social Science subject is as follows.

TN 9th Social Science Second Mid Term Question Paper 2024 PDF Download Link – Click Here to Download Question Paper PDF

TN 9th Social Science Second Mid Term Question Paper 2023 PDF Download Link – Click Here to Download Question Paper PDF

TN 9th Social Science Second Mid Term Question Paper 2024 PDF

You can download the Tamil Nadu Class 9 Social Science 2nd Mid Term Exam latest available previous year Question Paper PDF to refer to it at anytime.

9th Standard Social Science Mid-Term Exam

Tamil Nadu Board Schools hold 2nd mid term exam of Social Science subject for students of class 9 .
Therefore if you are 9th standard student with Social Science as a subject then you also have to appear in TN Class 9 2nd Mid Term Social Science Exam 2024-25 .
Study those chapters from Samacheer Kalvi 9th Social Science Book , and also their answers in Samacheer Kalvi 9th Social Science Book Solutions Answers Guide which are a part of Social Science Second mid term examination syllabus .

Tamil Nadu Class 9 2nd Mid Term Exam Question Papers

Schools of TN Board (DGE TN) hold Second mid term exams for all subjects taught in standard 9th, including Social Science. So if you are a class 9 student, then you must be looking for the 2nd mid-term examination papers for all subjects in addition to Social Science. Here are all the subject-wise TN Class 9 2nd Mid Term Question Papers.

Social Science

Tamil Nadu Board Question Papers

You can get previous year question papers of all classes of TN board from aglasem.

Tamil Nadu Board Class 8 Question Papers
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Second Mid Term Question Papers

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TN 9th Social Science Second Mid Term Question Paper – An Overview

The important highlights of this test preparation guide are as follows.

Aspects	Details
State	Tamil Nadu
Education Board	DGE TN
Board Full Form	Directorate of Government Examinations
Class	Std 9th
Subject	Social Science
Exam	2nd Mid Term Examination
Exam Preparation Material Here	Tamil Nadu Std 9th Social Science 2nd Mid Term Exam Question Paper
All Question Papers of This Exam
More Question Papers of This State Board
Complete Details of Board
Sample Question Papers

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Case Study Questions Class 8 Science Reaching the age of adolescence

Case study questions class 8 science chapter 10 reaching the age of adolescence, cbse case study questions class 8 science reaching the age of adolescence, case study 1, case study 2.

Que. 3) (d) Ductless glands

Case study 3

Que. 4) Answer: Adrenal glands produce hormone adrenalin, which helps the body to adjust to stress when the person is angry, embarrassed or worried.

Case Study Questions for Class 8 Science Chapter 13 Sound

Last modified on: 1 year ago
Reading Time: 4 Minutes

Here we are providing case study questions for CBSE Class 8 Science Chapter 13 Sound.

Case Study Questions

Question 1:

Sound plays an important role in our life. It is a form of energy which makes us hear . Vibrating objects produce sound. Vibration is the to and fro or back and forth movement of an object. Sound needs a medium to travel. Hence, it cannot travel in a vacuum.

Human beings have a voice box or larynx which is present in their throat on the upper side of the windpipe. The larynx has two vocal cords which have a narrow slit between them so that air can pass through it. As the lungs throw the air out of the windpipe, it passes through the slit and hence allows the production of sound as the vocal cords start vibrating. Since sound travels in the form of waves, it is important to study about characteristics of waves. The three main properties of waves are Amplitude, frequency, and time period.

The magnitude of disturbance in the medium on either side of the mean value is called as Amplitude(A). Larger the amplitude, louder the sound. The number of oscillations/vibrations per second is called frequency. which is expressed in Hertz (Hz). Time taken for one complete oscillation/vibration is the time period.

i) Which part of the human throat is responsible for the voice produced by a human?

ii) The form of energy which enable us to hear:

iii) The rapid to and fro or up and down movement of an object from its mean position:

iv) The maximum displacement of a vibrating object from its mean position:

iii) Vibration

iv) Amplitude

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