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• Important Questions for CBSE Class 6 Science 2024-25

CBSE Class 6 Science Important Questions - Free PDF Download

Class 6 Science contains interesting chapters based on various crucial topics. These chapters need to be studied to develop the scientific concepts and knowledge to proceed to the next level. This is where the Class 6 Science Term 2 Important Questions with Solutions for all the chapters will be the best platform to practise and study. These questions come with solutions framed by the subject experts that will help you resolve the doubts and proceed with the subject preparation.

Class 6 is the base for students to prepare well for upcoming courses. Science is the most important subject in our school lives. Students need to develop their practical approach with it. Students learn to know about living and nonliving things, different creatures on the earth, and different scientific incidents. Important Questions for Class 6 Science CBSE cover all the important questions to set the base for students to score good marks in finals. Thus these questions are meant to reduce exam stress such that students become confident enough to clear their concepts.

Class 6 Science covers different topics related to the human body, the food they eat, clothes they wear, matter, the body movements, forces, motion, and much more. These CBSE Class 6 Science Important Questions help students to clear out difficult concepts at a go. Vedantu is a platform that provides free CBSE Solutions (NCERT) and other study materials for students. Maths and Science Students who are looking for the better solutions, they can download Class 6 Maths NCERT Solutions and NCERT Class 6 Science Solutions to help you to revise complete syllabus and score more marks in your examinations.

Significance of CBSE Important Questions for Class 6 Science Board Exam

There are 16 important chapters in the Class 6 Science syllabus. These chapters cover crucial topics related to air, water, magnets, electricity, motion, body movements, organisms, etc. We can clearly understand that all these chapters are the basic concepts that start the division of science into different subjects. Hence, studying all these chapters becomes very important.

This is where the Important Questions for Class 6 Science Board Exam will be very important to solve. Once a chapter is finished along with the exercises, students can proceed to solve the important questions framed by the experts. These questions will help students to find out which part of a chapter needs to be focused on more.

The solutions will enable students to find out how to answer such fundamental questions in a neat way. Hence, these questions will not only make the students better in the subject but will also show how to score more in the science exams.

Advantages of Class 6 Science Important Questions with Answers PDF

The important questions designed by the experts will add a new perspective to all the chapters included in this syllabus. You will learn the probable questions suggested by the experts and will become ready to appear in the exams.

The questions come with solutions framed by the experts by following the CBSE Class 6 guidelines and standards. The answers are kept in a simpler version to make them easily comprehensible for you. Hence, your practice sessions will get the right boost.

Resolve doubts faster on your own by referring to the solutions given with these questions. Find out how the experts have answered these fundamental questions and learn to do the same to score more.

The answering format utilises the concepts taught in the chapters perfectly. Learn this skill of using the concepts to answer questions accurately and become better in this subject.

Download CBSE Class 6 Science Important Questions 2024-25 PDF

Also, check CBSE Class 6 Science Important Questions chapterwise.

Chapter wise Important Questions for CBSE Class 6 Science

Important Questions Class 6 Science - Free PDF Download

Students learn better with practical knowledge. However, theory exams are too important for them to pass and move to the next class. Also, extensive science syllabus can confuse them to cover every topic precisely. Thus, they need to know about important questions.

There is a detailed PDF prepared by Vedantu experts for 6th Class Science Important Questions . The PDF covers different important questions chapter wise such that students will be aware of important questions that are supposed to be covered from each chapter. Class 6 is the base class to learn self-study and include practice time in the schedule. If it is so, for science questions practice, students can follow up the PDF as prepared by experts after following the proper pattern from the CBSE syllabus .

Sometimes, students cannot solve some questions and couldn’t find appropriate answers to a particular problem. Also, they might don’t even know to answer a question according to marks weightage. Thus this PDF on Important Questions of Class 6th Science can help them best during exam preparations.

Important Questions for Class 6 Science CBSE

It is very important to work on theoretical concepts that align with practical ones. However, it could be not very clear for students to cover every chapter and hence detailed answers to Important Questions of Class 6 Science can let them score good marks. Below are the listed chapters for which different essential questions are to prepare.

Chapter 1: Food: Where Does It Come From

This chapter is to impart knowledge of the various food sources and comprehensive concepts on food. There are different questions covered upon the type of food eaten in various regions of India. Also, it covers other animals that eat plants, plants and animals both, and the animals that eat only animals. You will come across questions based upon various food, plants and animals eaten as food, food sources, and what animals eat to get energy.

Chapter 2: Components of Food

This chapter will have to come across four main topics: food, nutrition, malnutrition, and diet. Food is an edible substance with which animals get the energy to perform various tasks. Nutrition is how humans consume food and get energy and required nutrients.

Amount of food that we consume at a particular defined diet. However, if a person does not intake all the required amounts of nutrients, he becomes malnourished. Also, students will come across three classes of food components.

Chapter 3: Fibre to Fabric

In chapter three, you will come across types of fabrics we wear, fibres and fabrics, how fibre converts to form the fabric and the history of clothing. Also, students come across important questions based upon plant fibre, commercial ways of converting yards to fabric, and much more.

Different types of questions are covered, which include one-word answer type to long answers. All the questions are available according to the latest CBSE pattern .

Chapter 4: Sorting Materials into Groups

The chapters cover two main subheadings as Objects around us and the second one as properties of materials. Usually, one-line question-answers appear from this chapter. Also, this chapter forms a major part in true and false. Usually, there are two types of materials- hard and soft.

Chapter 5: Separation of Substances

In this chapter, students will come across learning of separating two or more mixed substances. They will have to learn different ways of separating substances and also know the application of each method.

Chapter 6: Changes Around Us

Class 6 Science Chapter 6 Important Questions will rely on different reversible and irreversible changes around us. These changes can occur when you heat any substance or mix some different substances. Thus it is a complete real-life based concept.

Chapter 7: Getting to Know Plants

It deals with plants' study, their parts, transpiration, types of roots, stems, and leaves. Also, it covers the functioning of flowers and stems.

Chapter 8: Body Movements

Here students will learn about the human body with subtopics as joints, bones, and movement in the human body. Also, it covers a study on animals like snake, cockroach, snail, earthworms, etc.

Chapter 9: Living Organisms and Their Surroundings

It includes basic surroundings, habitat, adaptation, habitat of aquatic animals and other living organisms with their habitats on earth.

Chapter 10: Motion and Measurement of Distances

Class 6 Important Questions for Science Chapter 10 cover different physics topics, including motion in the body, measuring distance, speed, and time including motion in the body, how to measure distance, speed, and time. It is a practical and mathematical chapter. Students need to relate questions according to real-life objects.

Chapter 11: Light, Shadow, and Reflections

Students become familiar with opacity, translucent objects, transparent objects, how shadows form, the reflection of light, how pinhole cameras are formed and uses of the mirror.

Chapter 12: Electricity and Circuits

As the name suggests, the chapter covers various sub-topics to learn and understand. It covers electric cells, which happens when you connect the bulb to the electric cell, electric circuit, electric switch, conductors, and electrical insulators.

Chapter 13: Fun With Magnets

You will learn magnets, magnetic and non-magnetic materials, like and unlike poles, an attraction in magnets, and repulsion forces. Also, you will learn how magnets help in finding directions.

Chapter 14: Water

Water is our basic need, and hence you will learn how it benefits us. Also, the topics will cover how to utilise water properly with management. But the topic will also cover how water quality degrades due to water pollution.

Chapter 15: Air Around Us

In the chapter, subtopics covered include: what air is made from, is air present all around, how animals inhale oxygen and much more. Also, it covers how air pollution is a major cause of diseases these days.

Chapter 16: Garbage In, Garbage Out

You will learn to deal with garbage, benefits of 3 R’s, think and throw, recycling of the paper, is plastic good or bad, and how to deal with garbage.

CBSE Class 6 Science Important Questions

6th Class Science Important Questions PDF will help students master during exams and avoid the last-minute rush. However, below we have some listed important questions for Class 6 students which will help them score good marks in their finals. It will also help them know a proper CBSE pattern for future reference.

Which is the highest nutritious food for animals?

What is a balanced diet?

How can you water is our basic need?

Give names of five products prepared from milk.

What is the major cause of air pollution?

What are luminous and non-luminous objects?

What are good and bad conductors of electricity?

Name any two magnetic and non-magnetic materials.

What do you mean by forces and motion?

Name animals with aquatic habitat.

Which bones protect our heart?

How plants perform photosynthesis?

What are reversible and irreversible processes?

What is the filtration?

Why are cotton clothes good for summers?

How can you classify objects?

Benefits of Class 6 Science Important Questions

NCERT is the foundation for CBSE syllabus . Thus if students will master syllabus according to CBSE guidelines, it will help them score good grades. Know about the basic benefits of Class 6 Important Questions for Science .

Students can quickly get a basic knowledge of types of questions asked and how to answer them in exams.

Teachers always look for the point answers and the important questions and answers prepared by Vedantu experts will help them score good grades.

Questions listed in the PDF are all according to the new guidelines of CBSE . Students need not search for important topics and concepts anywhere else.

Class 6 Important Questions for Science are designed according to the CBSE NCERT syllabus. All types of questions are covered in the PDF ranging from one-word answers to one-liners, from short answer types to long-answer types of five marks each. Thus students can prepare for the exams and even clarify their concepts through these. If they refer to these questions, this will prepare their minds according to the competitive edge. Students will become familiar with question paper patterns and types of questions that can appear in exams.

Other CBSE Class 6 Subject Link

Important Questions for CBSE Class 6 Maths

CBSE Class 6 Study Materials

Cbse class 6 science related links.

FAQs on Important Questions for CBSE Class 6 Science 2024-25

Q1. What is the syllabus of Class 6 Science?

The syllabus of Class 6 is given below:

Chapter 1– The Food: From Where Does It Come 

Chapter 2–Components of Food

Chapter 3–Fibre to Fabric

Chapter 4–Sorting Materials Into Groups

Chapter 5–Separation of Substances

Chapter 6–Changes Around Us

Chapter 7– Getting to Know Plants

Chapter 8–Body Movements

Chapter 9–The Existing Creatures and Their Surroundings 

Chapter 10–Motion and Measurement of Distances

Chapter 11–Light, Reflection and Shadows

Chapter 12–Circuit and Electricity

Chapter 13–Fun With Magnets

Chapter 14–Water

Chapter 15– Air Around Us

Chapter 16–Garbage In, Garbage Out

Q2. From where and how can students download chapter-wise important questions of Class 6 Science?

Students can download chapter wise important questions of Class 6 Science from Vedantu by following the given steps:

Go to the link of Important Questions for CBSE Class 6 Science, Chapter wise Solutions.

The link will land you on Vedantu's official page.

There you will see the list of chapters for Class 6 Science.

Choose the lesson whose important questions you want to download.

After selecting the chapter, click on the option of “Download PDF” present at the top of the official page of Vedantu.

  Q3. How can one score good marks in the Class 6 Science exam?

Students who desire to score well in the Class 6 Science exam must follow the given tips:

They should attend all the lectures so that they can discuss the topics in the class.

Study chapters from the NCERT book as this book is based on the CBSE guidelines.

Prepare notes of the chapters so that you don’t face any problems at the time of revision.

Solve all the NCERT questions to comprehend the concepts easily.

For a better understanding of the chapters, try to clarify your doubts regarding the topics.

Q4. What are the best study materials for a student of Class 6 Science?

When the exam approaches students often get confused regarding their preparation. They do not understand how to prepare for their Class 6 Science exam. The NCERT books are one of the best study materials from which students can prepare for their exams. Also, the NCERT questions will help in a better understanding of the topics or concepts. They can prefer “Vedantu” for getting all the NCERT Solutions and important questions of all the chapters. Guidebooks are also considered as the best study materials for the preparation of Class 6 Science exams. These solutions are available at free of cost on Vedantu(vedantu.com) and mobile app.

  Q5. Is Class 6 Science easy or difficult?

The answer to this question depends on the student's capability of grasping things easily. If they are determined to score well in Class 6 Science exams then this Class becomes easy for them. If they do not want to face any problems in Class 6 then they have to take their studies seriously. They should focus on what the teacher is teaching. The NCERT books should be your priority while preparing for your exams. They can also study from the Vedantu app. By doing this, Class 6 can become easy.

Important Questions for CBSE Class 6

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Class 6 Science Chapter 8 Case Based Questions - Light, Shadow and Reflections

Sarah is conducting an experiment with different objects to understand the properties of light. She has a wooden box, a glass pane, and a candle. She is using a source of light to observe the behavior of these objects.

Q1: What type of object is the wooden box in this scenario, and why? Ans: The wooden box is an opaque object because it does not allow light to pass through it. Q2: If Sarah observes that she can see through the glass pane clearly, what type of object is it, and why? Ans: The glass pane is a transparent object because it allows light to pass through it clearly. Q3: How does the behavior of the candle differ from the wooden box and the glass pane in terms of emitting light? Ans:   The candle is a luminous object because it emits its own light. Q4: Which of the following objects is an example of a translucent object? (a)  Wooden box (b)  Glass pane (c) Candle Ans:   (b) Q5: What is the primary characteristic that distinguishes a luminous object from a non-luminous object? (a) Color (b) Shape (c) Ability to emit light Ans: (c)

Mark is using a pinhole camera to capture images. He is experimenting with the camera's focus and understanding the principles behind it.

Q6: Explain how the image formed by Mark's pinhole camera is different from the actual object in terms of size and orientation. Ans:   The image formed by Mark's pinhole camera is inverted and smaller in size compared to the actual object. Q7: Describe the steps Mark should follow to make a pinhole camera. Ans: Steps to make a pinhole camera:

• Take two rectangular boxes that fit into one another without any gap.
• Cut open one side of each box.
• Make a small hole in the larger box at the center of the closed end opposite the side that has been cut open.
• Cut a square of side five centimeters in the smaller box in the closed end opposite the side that has been cut open.
• Cover this square with tracing paper.
• Slide the smaller box into the larger box, ensuring that the pinhole and the tracing paper are in line with one another but at opposite ends.
• Slide the smaller box to adjust the focus.

Q8: Why is it mentioned that "the image is not clear" in the context of a pinhole camera? Ans:   The image is not clear because the pinhole camera uses a small hole to form the image, resulting in limited light and reduced clarity. Q9: What is the principle on which a pinhole camera works? (a) The principle of reflection of light. (b)  The principle of refraction of light. (c)  The principle of straight-line propagation of light. Ans:   (c) Q10: Which type of surface reflects the entire light incident on it? (a) Transparent surface (b)  Opaque surface (c) Plane mirror surface Ans: (c)

A group of students is discussing the difference between shadows and images. They are using a mirror and a flashlight to observe and learn about these phenomena.

Q11: Explain the similarities and differences between shadows and images. Ans: Similarities:

• Both shadows and images require a source of light.
• They are formed when light interacts with objects.

Differences:

• Shadows are black and have no color, while images can be colorful.
• Shadows change in length with the position of the sun, while images in a mirror remain the same size.

Q12: Describe the setup and conditions required to observe a shadow and an image. Ans:   To observe a shadow, you need a source of light, an opaque object, and a screen. To observe an image in a mirror, you need a reflective surface and an object in front of it. Q13: Why do shadows change in length throughout the day, while images in a mirror do not? Ans: Shadows change in length throughout the day because of the changing angle and position of the sun. Images in a mirror do not change size. Q14: Which of the following statements is true regarding shadows and images? (a)  Shadows are always colorful. (b) Images change in size with the position of the sun. (c)  Shadows can be seen without the need for a screen. Ans: (c) Q15: What is the main reason behind the formation of shadows? (a) Reflection of light (b) Bending of light (c) Blocking of light Ans: (b)

A group of students is visiting an observatory, where they encounter a two-way mirror. They are curious about its functionality.

Q16: Explain how a two-way mirror works and its practical applications. Ans: A two-way mirror, also known as a one-way mirror, allows one side to act as a mirror (reflective) and the other side as plain glass (transparent). It is used for observing people without them knowing, such as in police stations or psychological institutions. Q17: Compare and contrast the behavior of a two-way mirror with a regular plane mirror. Ans:   Comparison with a regular plane mirror:

• A plane mirror is always reflective, whereas a two-way mirror can switch between reflective and transparent properties.

Q18: In what situations might a two-way mirror be used for observation without detection? Ans:   A two-way mirror might be used for covert observation without detection. Q19: A two-way mirror acts as: (a)  A transparent medium (b)  A translucent medium (c) A combination of a mirror and plain glass Ans: (c) Q20: What type of surface is a smooth plane mirror? (a) Transparent surface (b) Opaque surface (c)  Reflective surface Ans:   (c)

Tom is studying the concept of reflection and its importance in our daily lives. He is experimenting with various reflective surfaces.

Q21: Explain the concept of reflection of light and how it plays a role in forming images. Ans:   The concept of reflection of light involves the bouncing back of light when it encounters a smooth shiny surface. Reflection plays a role in forming images by redirecting light rays. Q22: Describe the behavior of light when it is incident on a smooth shiny surface. Ans:   When light is incident on a smooth shiny surface, it reflects back into the same medium following the laws of reflection. Q23: Provide examples of everyday situations where reflection of light is essential. Ans:   Examples of everyday situations with reflection of light: Mirrors, shiny metal surfaces, glass windows, and still water surfaces. Q24: Which term best describes the likeness of an object carried and formed by light in a mirror? (a) Image (b) Shadow (c) Reflection Ans:   (a) Q25: What is the primary characteristic that distinguishes a plane mirror from other reflective surfaces? (a) Color (b)  Smoothness (c)  Size of reflection Ans: (b)

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Case Based Questions: Light, Shadows & Reflections Free PDF Download

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Select chapter, recent question banks, reasoning and aptitude, practice now, environment, electricity and magnets, light, shadow and reflection, motion and measurement of distances, body movements, living organisms and their habitats, changes around us, grouping materials and their separation, fibre to fabric, our environment, fun with magnets, electricity and circuits, light shadows and reflections, the world of living, sorting and separation of materials.

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CBSE Class 6th Science Value Based Questions PDF Download

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CBSE Class 6th Science Value Based Questions are the easiest questions which you see in your question paper and the scoring one all student who attempt it surely get they are just little bit difficult and examine your basic knowledge regarding the particular chapter. Science Value Based Questions for Class 6th are available here at Free of cost. These questions are expected to be asked in the Class 6th board examination. These Science Value Based Questions are from complete CBSE Syllabus.

CBSE Class 6th Science Value Based Questions

Most of these Science Value Based Questions are quite easy and students need only a basic knowledge of the chapter to answer these questions. Download CBSE Science Value Based Questions for board examinations. These Science Value Based Questions are prepared by Directorate of Education, Delhi.

CBSE Science Value Based Questions Class 6th PDF

The purpose of the Science Value Based Questions is to make students aware of how basic values are needed in the analysis of different situations and how students require to recognize those values in their daily lives. Some questions are subject related. But even if they are not, that one-minute awareness of what we write about value without any specific preparation is a good step indeed.

CBSE Science Value Based Questions for Class 6th download here in PDF format. The most CBSE Science Value Based Questions for annual examination are given here for free of cost. The additional questions for practice the Class 6th exam are collected from various sources. It covers questions asked in previous year examinations.

CBSE Science Value Based Questions for Class 6th Free PDF

Class 6th books have many questions. These questions are regularly asked in exams in one or other way. Practising such most CBSE Science Value Based Questions certainly help students to obtain good marks in the examinations. 

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Class 6 Science Chapter 12 Electricity and Circuits Extra Questions

CBSE Class 6 Science Chapter 12 Electricity and Circuits Extra Questions and Answers is available here. Students can learn and download the PDF of these questions for free. These extra questions and answers are prepared by our expert teachers as per the latest NCERT textbook and guidelines. Learning these extra questions will help you to score excellent marks in the final exams.

Electricity and Circuits Class 6 Science Extra Questions and Answers

Very short answer questions.

1. What is the direction of flow of current in a dry cell? Answer: The current flows in closed circuit from +ve to -ve terminal of cell.

2. Name the +ve terminal of dry cell. Answer: Carbon rod with a metal cap on it.

3. Name the -ve terminal of a dry cell. Answer: Zinc metal plate.

4. What is dry cell? Answer: It is a device which converts chemical energy into electrical energy.

5. What is solar cell? Answer: A device which converts solar energy into electrical energy.

6. What is open circuit? Answer: An electric circuit in which electrical contact at any point is broken is called open circuit.

7. Write one use of insulators. Answer: Insulators are used in making switchboard, handles of testers, screw drivers.

8. What is the name of thin wire in the electric bulb? Answer: Filament.

9. In which of the following circuits A, B and C given below, the cell will be used up very rapidly?  

Answer: I circuit A the cell will get used up rapidly.

10. Figure given below shows a bulb with its different parts marked as 1, 2, 3, 4 and 5. Which of them label the terminals of the bulb?  

Answer: Labels 3 and 4 mark the terminals of the bulb.

11. What is inside the glass case of a bulb? Answer: Filament

12. Why does an electric bulb not glow when both the wires are connected to the same terminal of a cell?

Answer: The current flows from one terminal to the other. When both wires are connected to same terminal, current will not flow.

13. Give one difference between a cell and a battery.

Answer: A cell produces electricity by chemical reactions taking place in it whereas battery is made up of two or more cells joined together.

14. Write any two uses of electric cells. Answer: It is used in alarm clocks and wrist watches

Short Answer Type Questions

1. You are provided with a bulb, a cell, a switch and some connecting wires. Draw a diagram to show the connections between them to make the bulb glow.

2. Will the bulb glow in the circuit shown below? Explain.  

Answer: No. The bulb will not glow in this circuit because the switch is open and the circuit is incomplete. Due to this there will be no current flow.

3. An electric bulb is connected to a cell through a switch as shown in figure below. When the switch is brought in ‘ON’ position, the bulb does not glow. What could be the possible reason/s for it? Mention any two of them.

Answer: The reasons could be

• the bulb is fused.
• the cell is a used one.
• break in connecting wire.
• loose connections. (Any two)

4. A torch requires 3 cells. Show the arrangement of the cells, with a diagram, inside the torch so that the bulb glows. 

5. When the chemicals in the electric cell are used up, the electric cell stops producing electricity. The electric cell is then replaced with a new one. In case of rechargeable batteries (such as the type used in mobile phones, camera and inverters), they are used again and again. How?

Answer: Rechargeable batteries can be recharged by providing them appropriate current.

6. Paheli connected two bulbs to a cell as shown in the figure given below.

She found that filament of bulb B is broken. Will the bulb A glow in this circuit? Give reason.

Answer: No, bulb A will not glow as the circuit is not complete.

7. Why do bulbs have two terminals?

Answer: Bulbs have two terminals to connect the filament with the circuit so that the current can pass through it and get accumulated.

8. Which of the following arrangements A, B, C and D given below should not be set up? Explain, why.

Answer: Arrangement A is not desirable and should not be set up. This will exhaust the cell very quickly.

9. A fused bulb does not glow. Why?

Answer: In a fused bulb the filament is broken and the circuit is incomplete. The current will not flow and the bulb will not glow.

10. Paheli wanted to glow a torch bulb using a cell. She could not get connecting wires, instead, she got two strips of aluminium foil. Will she succeed? Explain, how.

Answer: Yes. Aluminium foils can act as connecting wires as it is a good conductor of electricity.

11. What are the essential components of an electric circuit?

Answer: Connecting wires, bulb, switch and cell are the essential components of an electric circuit.

12. Why should you not touch electric appliances and switches with wet hands?

Answer: Water is a good conductor of electricity and current passes very quickly through wet hands. Therefore, it can give us an electric shock.

13. Write two precautions that you must follow while handling electricity.

• Wear rubber gloves or slippers.
• Never touch switches with wet hands.

14. When a bulb is fused, it does not light up. Explain why?

Answer: When a bulb is fused its filament breaks, which in turn breaks the electric circuit. Thus, current does not pass through it.

15. Why does a cell stop producing electricity after sometime?

Answer: When the chemicals in the electric cell are used up, the electric cell stops producing electricity. Since all the chemicals are used, no chemical reaction takes place which will produce energy.

16. Write any two uses of electricity?

Answer: Two uses of electricity are:

• To operate pumps that left water from wells or from ground level to the roof top tank.
• Electricity makes it possible to light our homes, that makes our tasks easier.

17: What will happen if we join two terminals of electric cell directly through a wire?

Answer: If we join two terminals of electric cell directly through a wire, the chemical in an electric cell get used up very fast and the cell will stop working.

18: What is an electric circuit?

Answer: Arrangement that provides a complete path for electricity to pass (current to flow) is known as electric circuit.

19: Explain how the bulb glows in circuit when it is connected to an electric cell?

Answer: When the terminals of the bulb are connected with that of electric cell by wires, a current pass through the filament of the bulb and it makes the bulb glow.

20: How can an electric bulb get fused?

Answer: An electric bulb may get fused due to break in its filament. A break in the filament of bulb means break in the path of current between the terminals of electric cell.

21: Why rubbers and plastic used to cover electric wires and plug tops?

Answer: Rubbers and plastic are used to cover electric wires and plug tops because they are insulators and do not allow electric current to pass when we touch plugs and switches.

22: Why is distilled water used in the batteries and not the tap water?

Answer: Because distilled water acts as an insulator as it is purest water. Whereas tap water has salts and impurities and acts as a conductor.

23: Why is handle of tools like screw driver, pliers are covered with plastic or rubber?

Answer: Because they are insulators and avoid direct contact with electric current while touching electric wires.

24: Generally what can be components of an electric circuit?

Answer: Components of electric circuit can be following:

a. A cell or a battery

b. Connecting wires made of copper or aluminium

d. Bulb or other electric device

25: What is the function of an electric switch?

Answer: It is a simple device that either breaks the circuit or completes it. For example-in a microwave or toy cars we have switches to turn it ON or OFF.

26: What is an electric cell? How many terminals it has?

Answer: An electric cell is a device that converts chemical energy into electrical energy. It has two metal plates indicating two terminals-negative and positive. It has chemical inside it.

27: Statement is true or false: a. Bulb has one terminal. b. Electrolyte is present in the cell. c. Copper is good conductor of electricity. d. Circuit shows the path of current.

Answer: a. False b. True c. True d. True.

28: Classify the following as conductor or insulator: Eraser, coin, glass, pencil, needle, key, iron nail, plastic scale

Answer: Conductor-coin, needle, key, iron nail Insulator-eraser, glass, pencil, plastic scale

29. Mention two advantages of a dry cell. Answer:

1. It converts chemical energy into electrical energy. 2. It is light and small in size.

30. Draw the circuit diagram for operating a bulb with the help of a dry cell. Answer:

31. Define conductors and insulators. Give one example of each.

Answer: A conductor is that which easily allows the passage of current through it. Example: Aluminium or any metal. An insulator is that which does not allow the passage of current through it. Example: Rubber.

32. Identify conductors and insulators from the following: Eraser, paper, matchstick, copper wire, pencil lead, polythene Answer: Conductors: Copper wire, pencil lead. Insulator. Eraser, paper, matchstick, polythene.

33. Name the scientist who invented electric cell and the scientist who invented electric bulb. Answer: Electric cell: Alessandro Volta. Electric bulb: Thomas Alva Edison.

34. Give one activity to prove that air is an insulator.

Answer: Take an electric circuit, keep the terminals unconnected in the air. The bulb will do not glow, as air is an insulator and does not allow the current to flow through it.

35. In any electric circuit, when the switch is on and the current flows through it why do the wire, switches, bulb or devices become hot?

Answer: This is because electric energy changes into heat energy.

36.The headlights of a car have reflectors behind the bulb. What is the function of reflectors?

Answer: The reflector helps in reflecting the light into a focussed area.

Long Answer Type Questions

1: (a)What is electric circuit? (b) How many types of electric circuit are there? Define them. (c)Draw a diagram to show the closed circuit for switch, bulb and dry cell.

Answer: (a) An electrical circuit is a path or line through which an electrical current flows.

(b)There are two types of electric circuit:

• Open electric circuit
• Closed electric circuit

Open electric circuit:  The circuit in which electrical contact at any point is broken is called open electric circuit.

Closed electric circuit:  The circuit in which electric current flows from one terminal of a cell or battery to the other is called a closed circuit.

2. How can you explain that the human body is a good conductor of electricity?

Answer: If we stand barefoot on the ground and touch an electric wire, we will get an electric shock. This is because human body is a good conductor of electricity. Without slippers, current can easily pass through.

3. Why should we take care while handling electricity?

Answer: Carelessness in handling electricity and electric devices can cause servers injuries and sometimes even death, so we should take proper care while handling electricity.

4: What is the difference between conductor and an insulator? Explain with examples.

Answer: Materials that allow electric current to pass through them are called conductors. For example iron, copper etc. Metals are good conductors. Materials that do not allow electric current to pass through them are called insulators. For example- rubber, plastic etc

5. If you touch an electric wire carrying current you get a shock, but if on the same wire the birds sit they do not get any shock/current. Explain why?

Answer: When we hold the wire carrying current then the circuit is closed and the current flows from our body and enters earth but the birds sitting on the same wire do not get any current as the circuit is not complete. If the bird touches the earth wire, it will also die due to electric shock.

6. Boojho has a cell and a single piece of connecting wire. Without cutting the wire in two, will he be able to make the bulb glow? Explain with the help of a circuit diagram.

Answer: Yes, using the arrangement given below he can succeed in getting the bulb glow.

7. Figures A and B, show a bulb connected to a cell in two different ways. What will be the direction of the current through the bulb in both the cases. (Q to P or P to Q)

Answer: In Fig. (A) Q to P and in Fig. (B) P to Q.

8. A torch is not functioning, though contact points in the torch are in working condition. What can be the possible reasons for this? Mention any three.

Answer: The possible reasons could be

• the bulb may be fused.
• the cells may have been used up.
• the cells are not placed in the correct order.
• the switch is faulty. ( Any three )

9. Distinguish between the following.

(i) Insulator and Conductor Answer:

(ii) Open circuit and Closed circuit Answer:

(iii) Open switch and Closed switch Answer:

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CBSE Case Study Questions for Class 6 – 10, 12 for Maths, Science, SST

Cbse case study questions for maths, science, social science.

CBSE Case Study Questions:   Case Study Questions for all Class 1, 2, 4, 5, 6, 7, 8, 9,10, 11 and 12 by Experienced Teachers. We Net Ex. Arranged here Important Case Based Questions for CBSE Board – Maths, Science, Social Science, English.

One must keep in mind to not discover the answers straight forwardly within the given entry but moreover think effectively to determine the answer. Case based questions are either MCQs or Attestation Reason Questions, so for endeavoring such questions you must take after the run the show of end. Case studies capture a range of perspectives, as opposed to the single view of an individual you get with a survey response or interview. This gives the opportunity to gain a greater understanding of the subject in hand and reduces the potential for any bias, by diluting the agenda of a particular individual.

• Case Study Questions Class 6 Science
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• Case Study Questions Class 8 Science
• Class 8 Social Science Case Study Question
• Case Study Question for Class 10 Basic Maths
• Case Study Question for Class 10 Maths Standard
• Case Study Question for Class 10 Science
• Case Study Question for Class 10 Social Science
• Case Study Question for Class 10 Computer
• Class 11 Biology Case Study Question
• Class 11 Physics Case Study Question
• Class 11 Chemistry Case Study Question
• CBSE Class 12 Mathematics Case study Questions & Answers
• CBSE Class 12 Physics Case study Questions & Answers
• CBSE Class 12 History Case study Questions & Answers
• CBSE Class 12 Economics Case study Questions & Answers
• CBSE Class 12 Chemistry Case study Questions & Answers
• CBSE Class 12 Computer Science Case study Questions & Answers
• Case Study Question for Class 12 Biology
• Class 12 Physics Case Study Question

Due to a little test, the case ponder can conduct an in-depth investigation. – Case ponders make openings for a wealthy surrender of information, and the profundity of investigation can in turn bring tall levels of legitimacy (i.e. giving an exact and comprehensive degree of what the think about is trusting to degree).

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