Courses for Kids
Free study material
Offline Centres
Store Icon

Revision Notes for CBSE Class 8 Science

Last updated date: 21st Jul 2024
Total views: 703.2k
Views today: 7.02k

CBSE Class 8 Science Revision Notes

Science is a multi-disciplined academic field that helps students learn various concepts and topics. These professionally made Class 8 Science Notes by expert teachers at Vedantu can help students understand complex concepts related to all the chapters. Our Notes for Class 8 Science are designed to make even the toughest topic seem easy to learn for students. Based on the latest syllabus, students can use these Science Notes Class 8 and prepare well for their examination with ease.

NCERT Solutions Class 8 Science Notes PDF can be easily accessed online. You can also download NCERT Solutions for Class 8 Maths to help you to revise complete syllabus and score more marks in your examinations.

Detailed Overview of Class 8 Science Revision Notes





Number of Chapters:


Content Type:

Text, Videos, Images and PDF Format

Academic Year:




Available Materials:

Chapter Wise

Other Materials

  • Important Questions

  • NCERT Solutions

Download CBSE Class 8 Science Revision Notes 2024-25 PDF

Also, check CBSE Class 8 Science revision notes for other chapters:

CBSE Quick Revision Notes for Class 8 Science - Free PDF Solutions

Having 8th Standard Science Notes in a PDF format is one of the most convenient ways to do last minute revision and leave no room for confusion regarding any topic. The best part is that these Notes for 8th Class Science are available for free download from the main website of Vedantu. All these revision notes are carefully prepared to explain to students each chapter in a detailed way and clear their queries in the best possible way. Get 8th Class Science Notes PDFs to study at your pace and convenience without worrying about a stable internet connection.

Revision Notes for Class 8 Science

Chapter 1 - Crop Production and Management - This chapter covers how the food is being produced through various agricultural practices. It also elaborates that crops are majorly categorized into two kinds in India as per the season, i.e., Kharif and rabi. All the primary practices of crop production are explained thoroughly.

Chapter 2 - Microorganisms – Friend and Foe - This chapter starts with the easy definition of microorganisms, and then its concepts are described with the help of various activities. After that, it elaborates how microorganism plays a vital role in our lives and causes multiple diseases to humans, animals and plants.

Chapter 3 - Synthetic Fibres and Plastics - It talks about synthetic fibres and their kinds (nylon, acrylic, polyester, and rayon). Apart from this, the characteristics of synthetic fibres are elaborated thoroughly. The chapter also introduces plastics, their properties and their effect on the environment.

Chapter 4 - Materials – Metals and Non-Metals - The chapter describes the physical and chemical properties and uses of metals and non-metals. To describe all these properties in an easy way, various activities are included in the notes.

Chapter 5 - Coal and Petroleum - This chapter is about natural resources and their categorization. It elaborates that coal, petroleum and natural gas are fossil fuels that are generated from the dead residues of living organisms millions of years ago. It also explains how coke, coal gas and coal tar are generated from coal and refining petroleum and other concepts of natural gas.

Chapter 6 - Combustion and Flame - It covers the topic of combustion and its different kinds. It is thoroughly elaborated with the help of activities. Topics like measures to control the fire, concept of flame and its structure, fuel, efficiency and harmful effects of burning the fuel are discussed in the chapter.

Chapter 7 - Conservation of Plants and Animals - This chapter focuses on deforestation and its cause, consequences of deforestation, ways to conserve wildlife and forests, etc. It also covers topics like flora and fauna, wildlife sanctuary, biosphere reserve, migration, national park, endemic species, reforestation and more.

Chapter 8 - Cell – Structure and Functions - The chapter explains that the cells are the smallest living part of organisms. It exhibits a wide range of shapes and sizes and how several cells differ from organism to organism. It also elaborates on cell structure and function.

Chapter 9 - Reproduction in Animals - In this chapter, two types of reproduction, i.e., sexual and asexual reproduction, are explained. The sexual reproduction topic is elaborated thoroughly, including male reproductive organs, female reproductive organs, fertilization, viviparous and oviparous animals and development of the embryo.

Chapter 10 - Reaching the Age of Adolescence - This chapter explains the role of hormones that trigger a change in the human body and transform a child into an adult. It also explains topics like Adolescence, puberty and changes occurring during puberty.

Chapter 11 - Force and Pressure - One of the most critical chapters explains how a force emerges due to the interaction of two items and how force can be a push or a pull. It can change the state of shape or motion of an item. Further, topics like contact forces, non-contact forces, pressure, the pressure applied by gases and liquids and atmospheric pressure are explained thoroughly.

Chapter 12 - Friction - It explains topics like the force of friction, features are affecting friction and how friction can be maximised and minimised and fluid friction.

Chapter 13 - Sound - As we know, sound plays a vital part in human lives by guiding us to communicate with each other. The chapter elaborates how sound is produced, how it travels, how we hear it and why some sounds are louder than others.

Chapter 14 - Chemical Effects of Electric Current - It describes that a few liquids are a perfect conductor of electricity and a few are a poor conductor of electricity. It also explains the topic of ‘chemical effects of electric current’ and ‘electroplating’.

Chapter 15 - Some Natural Phenomena - The chapter discusses the disastrous natural phenomena, i.e. earthquakes, tsunami and lighting. It also highlights some steps to reduce the destruction of such natural phenomena.

Chapter 16 - Light - Our world is full of colours and pretty things. In this chapter, the topic of light and how we can see things around us are covered. It elaborates on the law of reflection, regular and diffused reflection and numerous reflections. It further explains that sunlight is called white light and it consists of 7 colours. Even the human eye is described with a diagram. The chapter also covers steps to protect eyes and how visually impaired people can write and read.

Chapter 17 - Stars and The Solar System - It explains the celestial objects like the moon, stars and constellations thoroughly. Later, the solar system is also elaborated with the features of every planet. It also includes comets, asteroids, meteors and meteorites and artificial satellites.

Chapter 18 - Pollution of Air and Water - This chapter talks about the harmful changes in our surroundings because of air and water pollution. It explains the greenhouse effects and ways to reduce air and water pollutants and purify them.

Importance of Revision Notes CBSE Class 8 Science

Students of Class 8 have a detailed Science syllabus consisting of 18 chapters that deal with Physics, Chemistry, and Biology concepts. Students can learn about microorganisms, crop production, synthetic fibres, metals, non-metals, plant and animal conservation, reproduction, cell structure, and much more. They are also introduced to the concepts of Force, Pressure, Sound, Friction, Light, Chemical Effects of Electric Current, Pollution, Solar System, etc. These topics are covered in the important chapters of Class 8 Science. Students can download Class 8th Science Notes in order to get all the details of the chapters easily. They will be able to understand the concepts better and hence prepare for their examination.


All the concepts, topics, processes, functions, and principles are explained in detail by the Science experts at Vedantu. Students can read the notes and then delve deeper into the details of the chapters and gain a strong conceptual foundation. Science chapters of Class 8 will teach the students a lot about the different occurrences that take place around us. Students will be able to understand the chapters in detail with the help of these revision notes. Thus, downloading Science Notes for Class 8 PDF is one of the ideal choices for students.

Benefits of Class 8 Science Notes PDF 

  • The Class 8 Science notes have been prepared by professionals at Vedantu in order to provide a conceptual foundation for the science chapters to Class 8 students. The topics and concepts have been explained in simple language. Thus, students are able to easily understand the details.

  • Vedantu’s experts have ensured that every single topic is explained with the help of examples. The notes provide detailed insights into the chapters. For instance, the Class 8 Science Chapter 1 Notes talk about the production of crops and different agricultural procedures. The students will be able to learn a lot of things from the notes.

  • The revision notes have been prepared as study materials for the students of Class 8. They can use the revision notes to prepare themselves for the examination and score good marks in the finals.

  • In case they miss out on classes at some point in time, students don’t have to worry about missing out on the chapters. They can quickly catch up with the rest of the class by referring to the revision notes.

  • Downloading quick revision notes for Science Class 8 will also enable the students to complete their revision way before their exams. They don’t have to go through the whole textbook in order to read the chapters. Just following the notes and reading the important parts will be enough.

Download Revision Notes for Class 8 Science to Prepare Well

Do you want to excel in your studies but need some help in Class 8 Science? For students looking for some assistance with the science chapters, Vedantu’s revision notes are the best source. Students can get all the details about the chapters from these notes and prepare the subject in the best way. Download the revision notes right now and gain a proper conceptual foundation in the chapters. 

CBSE Class 8 Science Study Materials

FAQs on Revision Notes for CBSE Class 8 Science

Q1. Why is it essential to revise before your Class 8 Science exam?

Ans: There are multiple reasons why revision is essential for you before taking an exam. During the revision process, you grasp small details involved in the topic and improve your analytical skills. You even find out your weak and strong topics and accordingly work on them to score better. If you use our Class 8 Science Notes, you don’t need to go through the entire textbook to prepare for your exam.

Q2. Do Notes for Class 8 Science cover all the crucial points and topics?

Ans: Science is an incredibly diverse and interesting subject that allows students to learn about various topics in life. As these notes are well-prepared by the subject professionals, they covered every important topic and thoroughly explained the topic to leave no room for doubts. You can undoubtedly call these 8th Class Science Notes your best friend during the exam period.

Q3. Is Class 8 Science easy?

Ans: Several factors determine whether Class 8 is easy or not. This includes the students’ ability and how well they prepare for examinations and their comprehension ability. Hence, there isn’t a simple answer to this question. Students who can comprehend the reasoning, underlying processes and systems will find Class 8 Science easy to cope with and they will be able to score good grades in the subject. It's also important to practice to become familiar with all the different types of questions that can be asked from the topics.

Q4. How many chapters are there in the NCERT Class 8 Science book?

Ans: There are 18 chapters in the NCERT Class 8 textbook. As a result, students in Class 8 may learn a lot of intriguing material and develop their understanding of a variety of topics. Hence, students must pay attention to all the chapters and not skip any of them. They must also practice the problems judiciously if they wish to attain good grades in the Class 8 Science exam. Each concept is crucial and must be learnt properly.

Q5. Do I need to practice all the questions provided in the NCERT book?

Ans: Yes, you should practice all the questions in the Class 8 NCERT Science book. You can also use a variety of other reference books. However, for Class 8, the NCERT book is more than sufficient for good comprehension and the tests. Check out Vedantu's Class 8 Science Notes for additional information. The NCERT is the optimum solution for addressing all the concepts and doubts of the students regarding the content of the syllabus of Class 8 Science. Solving all the problems will enable you to get acquainted with the format and the different problems related to your course.

Q6. Can I download the Class 8 Science notes?

Ans: Yes. Students can download the Class 8 Science Notes from Vedantu's website. These revision notes contain all the concepts and topics of all chapters of Class 8 Science. To download the notes for offline use, you should follow these steps.

  1. Visit the page Revision Notes for CBSE Class 8 Science.

  2. The webpage with  Vedantu's chapter-wise revision notes for Class 8 Science will open.

  3. To download the revision notes, click on the chapter for which you want to download the notes.

  4. The page with the notes of that chapter will open up. 

  5. Click on the Download PDF button. The pdf will be saved on your device and you can view the notes offline.

Q7. Is Vedantu’s revision notes enough to get good marks in Class 8 Science?

Ans: The revision notes are created in such a way that pupils can readily comprehend the concepts. They can be used by students who are not able to get their questions answered during class time and want to do well in the Class 8 examinations. In terms of test preparation, these notes are among the finest self-study aids since they help students enhance their ability to solve problems. Students may access Vedantu's Class 8 Science Revision Notes from anywhere and at any time, without any time restrictions or restrictions on accessing them.