Class 8 is the base of class 9 and 10. NCERT solutions for class 8 Science are important for students to build this base. The topics and lessons covered in NCERTs help in learning topics for class 9 and 10 before hand. When the student gets stuck with the questions, NCERT solutions can help them get an idea of how and what to do answer the question. With pre researched and expert revised solutions to questions, students can learn and understand how to solve or answer a questions. It gives students a sample of how and what should be the answer to the question. Also with tons of homework and work pressure on students, NCERT solutions can make the homework easier and less confusing. 

School Connect Online provides you NCERT solution for class 8 for every subject to help students as well as tutors. NCERT solutions for each subject, chapter and topic are available for students to read and learn. The NCERT books followed in various CBSE and state board affiliated schools. At the end of each chapter, an exercise is provided. Students should solve those exercise questions thoroughly. In the final exam, questions are asked from these NCERT exercise problems. . So, to help them we have provided detailed step by step NCERT Solutions for all the classes. These solutions will also help students in writing the answers in a better way from the exam perspective, so that they score more marks in exams.

 Class 8th NCERT solutions

tudents must refer to the syllabus every time whenever they study. It will help them in knowing the topics that they have to study.

Download CBSE Class 8 Science Syllabus PDF for 2020-2021

Chapter 1: Crop Production and Management

Chapter 2: Microorganisms : Friend and Foe

Chapter 3: Synthetic Fibres and Plastics

Chapter 4: Materials – Metals and Non-Metals

Chapter 5: Coal and Petroleum

Chapter 6: Combustion and Flame

Chapter 7: Conservation of Plants and Animals

Chapter 8: Cell – Structure and Functions

Chapter 9: Reproduction in Animals

Chapter 10: Reaching the Age of Adolescence

Chapter 11: Force and Pressure

Chapter 12: Friction

Chapter 13: Sound

Chapter 14: Chemical Effects of Electric Current

Chapter 15: Some Natural Phenomena

Chapter 16: Light

Chapter 17: Stars and The Solar System

Chapter 18: Pollution of Air and Water

Chapter 1: Crop Production and Management – Class 8 – Notes

Crops are plants grown by the farmers. Agriculture plays a very important role in the Indian economy. It is the backbone of our country. 70% of the Indian population depends on agriculture for food and money. It is the major occupation in the rural areas. The cultivation of crops depends primarily on the weather and soil conditions.

Chapter 2: Microorganisms : Friend and Foe – Class 8 – Notes

If you observe a drop of water in a pond through a microscope, you will see a lot of tiny rounded structures. These tiny creatures are known as microbes or microorganisms. They are all around us and are so small in size that they cannot be seen with bare human eyes. Microbes are classified into four groups as:

• Protozoa
• Bacteria
• Fungi
• Algae

Chapter 3: Synthetic Fibres and Plastics – Class 8 – Notes

We all wear and enjoy different types of clothes. There are some special types of clothes which are worn during certain occasions and some are season based clothes like cotton clothes during the summer to keep us cool, woollen clothes like sweaters, overcoats, shawls to keep our body warm during the winter season and raincoats during the rainy season. These different types of clothes are all prepared from the Fibres.

Chapter 4: Materials – Metals and Non-Metals – Class 8 – Notes

Everything around us is categorized into either metals or non-metals. Hence, it is important to know what nonmetals and metals are and how to distinguish them. Class 8 Science Chapter 4 discusses the various physical and chemical properties of metals and non-metals.

Chapter 5: Coal and Petroleum – Class 8 – Notes

Energy can be extracted from natural resources in many forms, and it can be transferred from one body to another in the form of heat or work.

Energy is essential to life and all living organisms. The sun, directly or indirectly, is the source of all the energy available on Earth. In Physics, energy is a quantitative property that must be transferred to an object in order for it to perform work. Hence, we can define energy as the strength to do any kind of physical activity. Energy is a conserved quantity and the law of conservation of energy states that energy can neither be created nor destroyed but can only be converted from one form to another. The SI unit of energy is Joule.

Chapter 6: Combustion and Flame – Class 8 – Notes

• A chemical process in which a substance reacts with oxygen to give off heat and light is called combustion.
• The burning of wood is an example of combustion.

You might have heard that certain substances are combustible whereas some are non-combustible. Combustible substances are simply those that undergo this process.

But isn’t Oxygen the most abundant substance on Earth? Doesn’t it combine with most of the elements? But surely, not all reactions can be said to be similar to this process. Even many people believe rusting of Iron is a similar process as rusting involves iron combining with oxygen giving off heat.

Chapter 7: Conservation of Plants and Animals – Class – 8 – Notes

• Extinction is when a species is completely wiped out from Earth.
• Once the last living individual of a species dies, the species is said to be extinct.

Chapter 8: Cell – Structure and Functions – Class – 8 – Notes

Cells are the fundamental structural units of living organisms and the basic units of life.

Robert Hooke discovered the cell in the year 1665 from a thin section of cork under a self-made microscope.

Chapter 9: Reproduction in Animals – Class – 8 – Notes

Reproduction is a process by which one organism produces offspring. It is one of the basic processes in all known life forms. Every organism we see around us is a direct result of reproduction.

Reproduction in animals and plants takes place in two ways:

• Sexually
• Asexually

Chapter 10: Reaching the Age of Adolescence – Class – 8 – Notes

The period of life, when the body undergoes changes, leading to reproductive maturity, is called adolescence. This is the time span in which the child develops into an adult.

• Adolescence begins around the age of 11 and goes on until 18 or 19 years of age.
• Adolescents are also called ‘teenagers’.
• The body at this stage undergoes important changes and these mark the period of puberty.

Chapter 11: Force and Pressure – Class – 8 – Notes

In science, a push or pull of an object is known as force. The interaction between two objects arises force. Force has both magnitude and direction. The strength of a force is expressed in magnitude. Force brings about a change in the direction or state of motion of a body. In class 8 Science chapter 11, various characteristics of force along with the types of force are discussed.

Chapter 12: Friction – Class – 8 – Notes

When we throw a ball on the floor it starts moving with some velocity. But once it is rolled ideally no force is acting in the direction of motion and according to Newton’s first law the ball should keep on rolling but this does not happen. The ball stops after moving a certain distance so a force must be acting on it. That force is known as friction.

Chapter 13: Sound  – Class – 8 – Notes

Sound plays an important role in our life. It is through sound we know that a period in school is over or if someone is approaching you by just listening to the footsteps. 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.

Chapter 14: Chemical Effects of Electric Current   – Class – 8 – Notes

Metals such as copper, aluminium are good conductors of electricity while materials like rubber plastics are bad conductors of electricity. In the case of liquids, some liquids are good conductors of electricity while a few are bad conductors of electricity. The water obtained from sources such as pumps, wells, ponds and tap are not pure and contain several dissolved salts. Such water is a good conductor of electricity. While distilled water is free of salt and is a bad conductor of electricity.

Chapter 15: Some Natural Phenomena  – Class – 8 – Notes

The class 8 Science chapter 15 discusses natural phenomena: lightning and earthquakes, and the measures to be taken to minimize the destruction caused by these phenomena.

Chapter 16: Light – Class – 8 – Notes

The world as we know is largely known through senses and the sense of sight is one of the most important senses. It is only when the light from an object enters our eyes that we see it. The light might have been either emitted by the object or reflected by it. Some of the important terminologies related to light are:

Light is the energy that enables us to see. Light is emitted from a source such as the Sun. The word usually refers to visible light, which is visible to the human eye and is responsible for the sense of sight.

Chapter 17: Stars and The Solar System – Class – 8 – Notes

The planets, the stars, the moon and other bodies in the sky are known as celestial bodies. Astronomy is a branch of science that studies celestial bodies and the associated phenomena. The change in the shape of the moon every day is one of the observations of celestial bodies that we can make. The day on which the whole disc of the moon is visible is known as the full moon day, while the day on which only a small portion of the moon is visible is known as the new moon day. Various shapes of the bright part of the moon seen during a month are known as the phases of the moon. The phases of the moon occur as we can only see the part of the moon that reflects the light of the Sun towards us.

Chapter 18: Pollution of Air and Water – Class – 8 – Notes

In chapter 18 of class 8 Science, we study the harmful changes taking place in our surroundings and their effects on our lives. The substance that contaminates air and water are known as pollutants. Air gets polluted from natural sources, smoke and dust arising from forest fires or volcanic eruptions. Pollutants such as power plants and automobile exhaust and burning of firewood are man-made pollutants. Carbon dioxide, nitrogen oxides, carbon monoxide, methane and sulphur dioxide are the major pollutants of air. Increasing levels of carbon dioxide lead to global warming.CBSE Syllabus for Class 8 Science for Academic Year 2020-2021

CBSE Notes for Class 8 Science Free Download for All Chapters

Download PDF of NCERT Solutions for Class 8 Science

CBSE NCERT Question Papers

The question papers are prepared by the CBSE and other boards in accordance with the NCERT exam guidelines. Here, we have provided the question papers for class 6 to 12. By solving them students will get an idea about the question paper pattern, types of questions asked, marks distribution and important topics. These question papers will be more helpful for the class 12 and competitive exams.

Get  Question paper for class8

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