NCERT Solutions for Class 8 Science CBSE

Find the best resources for exam revision in TopperLearning’s NCERT solutions for CBSE Class 8 Science. Learn diverse topics such as constellations, pollution, friction, plant cell, and more with these solutions. While you can create notes from the textbook for the NCERT questions, it is good to have accurate CBSE Online Class 8 solutions from subject experts for quick reference. 

You just need to visit our study portal to check the chapter-wise answers in our NCERT CBSE Class 8 Science textbook solutions. And the concept insights in NCERT come as a value addition to give you more clarity of the topics that are part of your CBSE Class 8 syllabus. Science as a subject is easy or difficult depending on how you perceive it. If your concepts are clear and you can remember the required formulae, you’re good to go. However, the ease or difficulty of the subject depends on how well you can remember the topics you learned during revision. 

While going through Class 8 NCERT Science textbook solutions, you will come across practical applications of many Science-based concepts. The diagrams in the answers further support you to grasp concepts. Our NCERT CBSE Class 8 Science solutions will not only help you to understand those concepts but will also help you to apply them in real life. For exam preparation, do take a look at our solutions for CBSE Class 8 sample paper 2020-21.

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NCERT Solutions Science

NCERT Science VIII 2020

NCERT Solutions for Class 8 Science

Chapter 1 - Crop Production and Management

In the NCERT solutions for CBSE Class 8 Science Chapter 1 Crop Production and Management, you will learn the various techniques for preparing soil and sowing seeds. The key concepts in this chapter also include animal husbandry and food sources from animals. Learn about the types of crops to understand how cultivation is carried out by farmers. Find ways on how to improve crops by studying with our NCERT chapter solutions.

Read the answers to the exercises on page 14 of your CBSE Class 8 Science NCERT textbook to find out about the difference between manure and fertilizers. Are fertilizers harmful? Read all about it with the explanations and concept insight given in the NCERT solutions. Read about Kharif crops and Rabi crops. What’s the difference between them? Get all the answers in the NCERT textbook solutions.

Revise the cropping patterns in India with our NCERT CBSE Class 8 Science textbook solutions. Learn about farming methods such as Tilling, Threshing, Weeding, and more. Understand the different agricultural practices by revising the sugarcane crop production process. Review the answers to objective-type questions by referring to the solved CBSE Online Class 8 questions from your NCERT textbook

Sometimes, instead of fill in the blanks, you may get a set of questions in a crossword form. Learn to solve such puzzles by revising the NCERT CBSE Class 8 Science solutions at TopperLearning.


Chapter 2 - Microorganisms: Friend or Foe

When you revise the NCERT solutions of CBSE Class 8 Science Chapter 2 Microorganisms: Friend or Foe at TopperLearning, you will come across concept insights that will tell you more about the concepts being discussed. The concept insights will also alert you about the questions that are important from the exam viewpoint. In Chapter 2, learn about yeast, bacteria, fermentation and other topics. Did you know all microorganisms are not bad? Yes, there are useful microorganisms too. Discover more about microorganisms in Chapter 2 of your CBSE Class 8 syllabus.

NCERT Solutions for Class 8 Science Chapter 2 will assist you to understand the different types of microorganisms. Study in detail about microorganisms such as fungi, algae, protozoa and bacteria. Find out which microorganisms are good and which microorganisms are considered harmful. Also, know the various methods for preserving food. 

Houseflies are common carriers of communicable diseases. Understand more about communicable diseases with the NCERT solutions for CBSE Class 8 Science. Learn all about the harm that can be caused by the bad microorganisms and how to prevent them with help of good microorganisms. Additionally, in the chapter solutions, understand how antibiotics help to protect you against bad microorganisms.


Chapter 3 - Synthetic Fibres and Plastics

Revise concepts such as synthetic fibres and types of synthetic fibres in the NCERT CBSE Class 8 Science textbook solutions Chapter 3 Synthetic Fibres and Plastics. You will learn about the properties of fibres such as rayon, nylon, acrylic and polyester. Also, understand the advantages and disadvantages of synthetic materials such as plastics through the NCERT Science book Class 8 solutions.

Get solutions for all 12 questions on Page 41 from your NCERT textbook at TopperLearning. Understand what synthetic fibres are and what are the features of nylon fibres. Experienced Science teachers have provided accurate answers for the CBSE Class 8 Science NCERT book questions.

Can you easily bend thermosetting plastic? Why are saucepan handles made of thermosetting plastic? Can plastics be good conductors of electricity? The free textbook solutions from carry the answers to these Science questions. Revise the CBSE Online Class 8 solutions to understand what kinds of plastics can be recycled. Also, learn why chemicals don’t cause corrosion in plastics.


Chapter 4 - Materials: Metals and Non-Metals

The NCERT solutions for CBSE Class 8 Science Chapter 4 Materials: Metals and Non-Metals will help you with questions asking you about the physical properties and uses of metals and non-metals. Find out what will happen when metals come in contact with water, oxygen, acids and bases. Also, revise the concept of the displacement reaction.

Get a deeper understanding of the properties of metals and non-metals. Get answers for True or False questions from the CBSE Class 8 Science NCERT textbook. Revise what happens in displacement reactions while learning about elements. Also, get introduced to litmus paper tests in this chapter. Knowledge of Science facts will also improve your general knowledge and help you win quiz competitions based on Science topics. 

Find answers on how gold is polished based on the scientific knowledge available about metals. This CBSE Class 8 Science chapter includes numerous such scientific facts that will make you a smarter person. That’s not all, knowledge of sodium, copper, coal, etc. will make it easier for you to understand Chemistry concepts in your higher classes. 


Chapter 5 - Coal and Petroleum

With our NCERT solutions for CBSE Class 8 Science Chapter 5 Coal and Petroleum, get descriptions on how coal tar, coal gas and coke are produced from coal. This chapter also covers the limited availability of natural resources and the need for the careful usage of resources for a sustainable future.

What is Bitumen? How does it help us? Find answers in the NCERT solutions for Class 8 Science free textbook solutions. Understand the key benefits of Liquefied Petroleum Gas or LPG and Compressed Natural Gas or CNG. Get the answers to true or false type questions in your textbook too. Our solutions are loaded with concept insights to make it easy for you to understand the concepts. 

Read our NCERT Class 8 Science solutions to understand the preparation method of Kerosene. In addition, the solutions give you accurate explanations of topics like fossil fuels, petroleum and coke. With the availability of the solutions online 24x7, you can revise the chapter at any time as per your learning plan. To understand what kinds of questions were asked in the questions recently, check the CBSE Class 8 sample paper 2020-21.


Chapter 6 - Combustion and Flame

In the NCERT solutions for CBSE Class 8 Science Chapter 6 Combustion and Flame, study combustible and non-combustible gases. Find out why goldsmiths use the outermost part of the flame to melt gold and silver. Discover the meaning of terms such as flame, combustion, fuels, fire and burning. Revise the various types of combustion with our CBSE Online Class 8 solutions.

Revisit the lessons on the process of combustion in this chapter. Understand what an ignition temperature is. Grasp the difference between wood and LPG. Through the CBSE Class 8 Science sample paper and NCERT solutions, brush up your understanding of heat generated in a burning candle. Revise the calorific value of a fuel. 

The CBSE syllabus for Class 8 Science becomes more and more interesting in this chapter as it reveals the scientific facts about things that leave you in awe. For example, find out why dry leaves are used to create fire instead of green leaves. 


Chapter 7 - Conservation of Plants and Animals

Through the NCERT solutions for CBSE Class 8 Science Chapter 7 Conservation of Plants and Animals, revise the concepts of deforestation and reforestation. Find answers on what are the differences between a zoo, a biosphere reserve and a wildlife sanctuary. Also, get answers on concepts such as flora, fauna, endangered species and extinct species.

Revise the NCERT CBSE Class 8 Science solutions by qualified teachers with huge experience in the field of education. These reputed teachers guide you with answers on Biosphere reserves, wildlife sanctuaries, zoos, and more. The chapter tells you about the types of species and why certain species fall under the extinct category. 

Also, understand the terms flora and fauna with the examples given by our subject experts. The CBSE syllabus for Class 8 Science Chapter 7 also covers important details on global warming, green wealth, deforestation, ecological balance, and more. In this Science chapter, understand the significance of the conservation of forests and how animal poaching impacts forests. Explore CBSE Class 8 Science sample papers to practise different types of questions from this chapter.


Chapter 8 - Cell – Structure and Functions

Study the accurate answers on the structure and functions of an animal cell and plant cell in the NCERT CBSE Class 8 Science textbook solutions Chapter 8 Cell – Structure and Functions. Learn to list the differences between eukaryotes and prokaryotes. Revise concepts such as amoeba, unicellular organisms etc. with TopperLearning’s NCERT solutions for Class 8 Science.

Do you know how unicellular organisms are different from multi-cellular organisms? Are you aware of the purpose of nerve cells? Refresh the answers to these questions and some basic concepts on the structure of cells from earlier lessons. Revise the diagram of a plant and animal cell. The diagrams explain the features of the different types of cells and support you to write detailed answers on cells.

Also, go through the comparison of eukaryotes and prokaryotes in this chapter. Revise the concept of chloroplasts and figure out where these plastids can be found. Our CBSE Class 8 science textbook solutions give you answers to crossword type questions from the NCERT textbook as well.


Chapter 9 - Reproduction in Animals

Use our NCERT Solutions for Class 8 Science Chapter 9 Reproduction in Animals to understand the difference between a zygote and a foetus. This chapter will take you through the process of human reproduction and fertilisation. Also, find out how living organisms produce offspring. Learn about sexual and asexual reproduction. 

Looking for answers to NCERT CBSE Class 8 Science textbook questions on page 110? We’ve got answers for all 9 questions on the page by some of the highly experienced teachers in India. Understand the various types of fertilization with well-prepared solutions.

In the Science exam, you will be asked different kinds of questions that are covered in your NCERT textbook. These include crossword questions, true or false questions and more. So, revise the free textbook solutions as per the CBSE Class 8 syllabus to prepare for those questions. Get the required learning materials on the topic of reproduction in animals and get ready for your class tests and final exam. 


Chapter 10 - Reaching the Age of Adolescence

NCERT solutions for CBSE Class 8 Science Chapter 10 Reaching the Age of Adolescence aims to give you answers on what are the chemical and physical changes which take place in humans when they reach the age of adolescence and puberty. It also gives students insight into the topics of hormones and reproduction that are covered in this chapter.

Different phases in the life of human beings bring about a certain change in their physical characteristics. Adolescence is a time when humans are transitioning to adulthood. Learn everything about this phase in the CBSE Class 8 Science Chapter Reaching the Age of Adolescence. Understand what happens when boys and girls reach the stage of reproductive maturity.

The chapter educated you about important concepts such as puberty and mensuration. Revise the lessons on the human endocrine system with the NCERT CBSE Class 8 Science textbook solutions. The chapter also informs you of the role of sex hormones in the human body. Also, understand how adolescence results in the development of sexual characters in boys and girls.


Chapter 11 - Force and Pressure

In the NCERT solutions for CBSE Class 8 Science Chapter 11 Force and Pressure, get answers on how the force works and understand what is contact force and non-contact force. Revise the concepts like atmospheric pressure, electrostatic force, gravitational force, muscular force etc. that are covered in your NCERT Science book CBSE Class 8 syllabus.

Study your CBSE Class 8 Science lessons on gravity and friction in this chapter. The NCERT book covers several questions on force and friction. Understand these concepts with examples and concept insights presented by subject experts in our NCERT solutions. This chapter will educate you about the different types of force such as muscular force, electrical force and so on.

Does force have a direction? How is the knowledge of force applied in real life? Understand the answers with TopperLearning’s NCERT solutions for CBSE Class 8 Science. The study resources like CBSE Class 8 sample paper 2020-21 that you find at our e-learning portal are reliable as these are prepared by some of the best teachers around. You can access and revise these textbook solutions at your convenience by visiting our study portal.


Chapter 12 - Friction

NCERT solutions for CBSE Class 8 Science Chapter 12 Friction will help you to find out what affects friction and what causes friction. Find out what are the advantages and disadvantages of friction, how friction affects a moving car or aeroplane etc. Gear up your exam preparation by practising CBSE Class 8 Science sample papers and solutions.

Learning topics like friction will open your eyes to amazing Science facts that explain why a book slides when it is kept on a titled writing desk. This chapter will tell you why sports shoes have spikes and why tyres wear out after a certain time. Read our NCERT solutions for Class 8 and relearn the concept of frictional force. 

Understand how friction makes a wet floor slippery by referring to our CBSE Online Class 8 Science NCERT solutions. Skim through the various examples of how friction is an important concept of Science that impacts our daily life. With examples in our CBSE Class 8 Science solutions, you will be able to think of ideas where the concept of friction applies and your conceptual knowledge will improve. This, in turn, will allow you to write about the topic correctly in your exam and will enable you to improve your exam scores too.


Chapter 13 - Sound

Understand the various types of sounds and how sound is produced with the help of NCERT solutions for CBSE Class 8 Science Chapter 13 Sound. Learn what kind of sound is considered noise. Also, study sound vibration and sound frequency.

Find accurate NCERT solutions for CBSE Class 8 Chapter Sound at TopperLearning. In this chapter, you will some of the basic concepts related to the study of sound. You will get to understand whether sound travels through solids and liquids. Find out how frequency is related to the pitch of an adult person’s voice and how it compares to a baby’s voice.

Is there a limit to the frequency of sound humans can hear clearly? Are there sounds that are inaudible to human ears? Know about the listening power of humans with Science facts on sound in our CBSE Class 8 Notes for revision with NCERT textbook exercises. Besides, revise the application of the frequency formula and other formulas from this chapter with our step-wise answers.


Chapter 14 - Chemical Effects of Electric Current

In our NCERT CBSE Class 8 Science textbook solutions Chapter 14 Chemical Effects of Electric Current, Science experts provide answers on what happens when electric current flows through a chemical solution or water. Also, understand the concept of electroplating while learning about the chemical effects of current by referring to our NCERT solutions for Class 8 Science Chapter 14.

Revise this important chapter with TopperLearning’s CBSE Class 8 Science NCERT solutions. Understand what is electroplating corrosion and how it impacts metal objects. Along with our solutions, there are these concept insights that give you complete clarity of the concepts covered in the textbook solutions. 

Learn why water is a good conductor of electricity and why it is difficult to repair an electrical appliance when it is raining. Our NCERT solutions for Class 8 Science will help you grasp the right answers to important questions concerning real-life applications. With a thorough revision of these chapter concepts, exam questions on the chemical effects of electric current will be comfortable to tackle. To practise questions for the exam, check CBSE Class 8 Science sample papers and solutions.


Chapter 15 - Some Natural Phenomena

While revising the NCERT solutions for CBSE Class 8 Science Chapter 15 Some Natural Phenomena, you will find out more about natural phenomena such as earthquakes and lightning. Also, study the concept of charge, positive charge, negative charge, electric discharge, the principle of lightning conductor etc.

With the NCERT solutions for CBSE Class 8 Science by TopperLearning, you will learn how rubbing two objects generates an electric charge. Revise the correct answers to True or False questions with concept insights which give you the additional benefit of better conceptual clarity. When you know the concepts well, you will be able to elaborate on them in your exam with ease.

NCERT solutions for your CBSE Class 8 Science textbook questions not only equips you for your school exam but also improve your general knowledge. As you feel more confident to provide a clear explanation for natural phenomena, you become more confident to participate in Science-based competitions at the school level. The CBSE Class 8 syllabus concepts will also make various advanced concepts in higher classes simpler for you as you move ahead in your academic journey.


Chapter 16 - Light

NCERT solutions for CBSE Class 8 Science Chapter 16 Light helps you understand the concept of human vision and visual impairment. In this chapter, you will be introduced to the structure of the eye. Also, learn about the dispersion of light and the laws of reflection.

In school, you will learn more about light as you progress through classes. In the solutions for CBSE Class 8 Science NCERT book, you will get familiar with the basic concepts part of the study of light. Revise about different types of reflection – diffused reflection and regular reflection. The chapter solutions will benefit you immensely during your revision of critical chapter concepts for the exam.

Revisit the important topic of laws of reflection with TopperLearning’s NCERT solutions for CBSE Class 8 Science. Relearn the relationship between the angle of incidence and angle of reflection. The chapter is intriguing with solutions on how to construct a kaleidoscope to answers on how to take care of eyes.


Chapter 17 - Stars and the Solar System

Discover the stars and planets in our solar system through the NCERT solutions for CBSE Class 8 Science Chapter 17 Stars and the Solar System. Study the phases of the moon and get answers on where you will find asteroids. Deepen your knowledge of the night sky with NCERT solutions for Class 8 Science Chapter 17 about constellations, celestial bodies and more.

Ever wondered whether a constellation is a part of the solar system or not? And what is Sirius in the study of the solar system? Answers to these questions and other fascinating facts about the solar system can be found in the NCERT solutions for CBSE Class 8 Science. Learn about planets and asteroids in the solar system with our expert solutions for Fill in blank questions.

Find out whether pole star is a part of the solar system or not with the True or False questions in our CBSE Class 8 Science textbook solutions. Get to know the constellations in the sky by revising the questions and diagrams from this Science chapter. In addition, expand your knowledge about the sun by practising the solved CBSE Class 8 sample paper 2020-21 question at our study portal.


Chapter 18 - Pollution of Air and Water

Is clear water pure? What causes air pollution? How can we prevent water pollution? Find answers to all these questions and more in our NCERT solutions for Class 8 Science Chapter 18 Pollution of Air and Water.

How does water get contaminated? Can you contribute to minimising air pollution? The answers to these important questions concerning our environment can be found in NCERT solutions for CBSE Class 8 Science. Also, learn how clean water can reach people with the right measures. Revise how pollutants like sulphur dioxide are released into the atmosphere due to the burning of fuels like coal.

In your CBSE Class 8 syllabus, the chapter on pollution of air and water makes you aware of various environmental issues. You will know how sewage wastes, agricultural chemicals and industrial wastes are impacting the environment. The CBSE Class 8 Science solutions also guide you on the solutions to tackle the pollution caused due to these activities.


Why choose TopperLearning?

TopperLearning is among India’s leading online education portals for K-12 study resources. You can find resources like NCERT solutions for Class 8 Science, concept videos, online tests, CBSE sample paper Class 8 and more on our study portal. Get important exam preparation tips and resolve your doubts with our ‘Ask the Expert’ feature. Build your exam confidence with constant practice of solutions from our sample papers and previous years’ papers covering subjects such as Physics, Chemistry, Maths, English, Biology and Hindi.

Utilise the study materials at TopperLearning to excel in the crucial years of Class 8 to Class 12. We also provide high-quality online learning materials for JEE and NEET which are prepared by subject experts for competitive exam preparation. For Class 8, you can revise chapter concepts better with our online study materials and aim for high marks with the necessary exam preparation.

NCERT textbooks are the reference resources prescribed by the CBSE to prepare for CBSE Class 8 Science exams. In Class 8, you will find exercise questions on important topics like gravitational force, chromosomes, cell structure, light, sound, etc. in your textbook. To answer the textbook questions, you may need support mainly for the complex questions. In addition, CBSE Class 8 sample paper 2020-21 is a good resource to practise question types that are likely to appear in your exam.

In our NCERT CBSE Class 8 Science textbook solutions, you will find the ideal answers to textbook exercise questions. These questions are answered by academicians who are subject experts with enormous experience and they are aware of the latest CBSE Class 8 syllabus and marking scheme followed by CBSE. To make it easy for you to navigate through the answers, we have arranged the solutions in a chapter-wise format. All you need to do is select the chapter for quick access to the chapter-specific CBSE Class 8 Science solutions.


What are the benefits of using Class 8 Science NCERT Solutions?

Science is one of those subjects which lays the foundation on your journey towards becoming a scientist or innovator in a specific field of Science. NCERT CBSE Class 8 Science textbook solutions are designed to support you with a conceptual understanding of topics in your CBSE Class 8 syllabus. Mugging up answers from your Science textbook might help you to score marks. But to excel in the field of Science, you need to understand the concepts taught in school.

Our NCERT solutions for Class 8 will come in handy for understanding the concepts learned in your Science class. Loaded with concept insights, TopperLearning’s CBSE Class 8 Science solutions empower you with in-depth knowledge of topics from your CBSE Class 8 syllabus. Revise objective type questions like true or false questions or learn to give detailed answers on how to construct a kaleidoscope. All you need is well-written answers easily available at our online education portal.

Whether you intend to revise the topics or find solutions for difficult questions, NCERT CBSE Class 8 Science textbook solutions by our subject experts will support you in your endeavour. These solutions can be viewed as many times as you want 24x7. For more support, you may take a look at other study resources such as CBSE Class 8 Science sample papers and solutions that are available at TopperLearning. We also have a dedicated ‘Ask The Expert’ platform to give you a helping hand if you have questions on topics from your CBSE syllabus for Class 8 Science.

Frequently Asked Questions (FAQs)

1. Are NCERT CBSE Class 8 Science solutions really helpful?

Yes, the NCERT solutions offer in-depth knowledge about the subject in the easiest way possible.

2. Does referring to NCERT CBSE Online Class 8 solutions help in understanding concepts?

Yes, since the questions in the solutions comprise all types of questions, the exposure here is much wider.

3. Where can I find the NCERT CBSE Class 8 Science textbook solutions/notes?

TopperLearning NCERT solutions/notes are divided chapter-wise and can be found easily at Topics from the deleted syllabus of CBSE Class 8 are removed from the portal from time to time to keep the study materials relevant.

4. Will my doubts (if any) regarding the NCERT solutions be answered?

Yes, all doubts regarding NCERT solutions or otherwise will be cleared.

5. Will these notes help me in other important exams?

Yes, these are elaborate solutions that will help you when you prepare for other exams such as the Science Olympiad.

6. Which Class 8 Science chapter covers answers on diffused reflection? 

NCERT CBSE Class 8 Science textbook solutions Science Chapter Light includes answers on diffused reflection and other topics related to the study of light.

7. What are the diagrams that I can revise using NCERT solutions?

Some of the diagrams that you can practise using NCERT free textbook solutions are plant cell, nerve cell, the human eye, etc.

8. What kind of solved questions are present in the CBSE Class 8 Science solutions?

Questions like true or false, crossword, fill in the blanks, distinguish between, long answer questions, etc. are some of the question types that are answered in the textbook solutions.

9. Are there CBSE Online Class 8 solutions available for practising numerical from the textbook?

Yes. TopperLearning’s NCERT solutions provide solutions for numerical in Science along with concept insights. You can also check CBSE Class 8 sample paper 2020-21 and other resources to practise numerically.

10. How will concept insights present in the NCERT CBSE Class 8 Science textbook solutions help me?

Concept insights give you explanations of concepts or justification of certain answers and inform you of important questions from an exam point of view.