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CBSE Class 8 Science Notes – Here is a detailed Explanation, Notes, Question Answers provided for NCERT Science Textbook for Class 8. The NCERT Book lessons have been provided here with complete explanations from beginning to end. It is ready to study material for Class 8 students of the CBSE Board.
- Introduction
- Light Class 8 Video Explanation
- Definition of Light
- Non Luminous Objects
- Types of Phenomenon
- Characteristic of Best Reflector
- Laws of Reflection of Light
- Types of Sources of Light
- Types of Mirrors
- Concave Mirror
Light plays an important role in our life. No activity is possible without light, especially at night. To exemplify, in late evening we cannot do our routine tasks like we will not be able to cook food. If we are unable to cook food, it directly affects our health. In other words, we can say that our health is directly or indirectly related to food...
Top Then the question arises how plants make food. Plants makes food by the process of photosynthesis. So, for photosynthesis light is the main source. This just proves how important light is for our lives.
Light is a form of energy that enables us to see various things present in our surroundings. Now the question arises how do we see the things that surround us? When light falls on an object, some part of the light is reflected back to our eyes. Then, we are able to see an object due to the light being reflected from it. Light is an electromagnetic ...
The objects which does not have their own light. For example, chair, table, floor, and wall. We cannot see these objects without the help of light. So, to make these objects visible, we need to stay around luminous objects. When there is no light at night, we are unable to see objects. To make them visible we need light (luminous objects) because t...
1. Absorption When light falls on a surface and gets absorbed it is known as absorption. The surface which absorbs the light looks black. So, we can say that black is a perfect emitter and absorber of light. 2. Transmission The process when light falls on a surface may pass through the surface is known as transmission. The surface which allows the ...
For any surface to be a good reflector, it should possess certain qualities as follows – 1. It should have shinysurface. 2. It should have polishedsurface. 3. It should have smoothsurface. For example- silver is the best reflector. Before understanding the laws of reflection of light, lets understand the meaning of some important terms such as, inc...
The laws of reflection of light apply to both plane mirror as well as spherical mirror. First law of reflection: According to the first law, the incident ray, reflected ray, and normal ray, all lie in the same plane. Second law of reflection: According to the second law, the angle of reflection is always equal to the angle of incidence. (∠i = ∠r) L...
The type of sources of light depend upon the size of substance from which light comes. The different sources of light are as follows – 1. 1.1. Point sources: These sources have very small size. In physics, it is represented with dot. 1. Finite sources: These sources have certain height. For example: Candle. Top
There are two types of mirrors as follows: 1. Plane mirror 2. Spherical mirror Plane mirror: The mirror that has plane reflecting surface. The one side of plane mirror has polished, smooth surface and light is reflected from the inner surface of the plane mirror. Spherical mirror: The mirrors that have curved reflecting surface. Spherical mirrors a...
The mirror in which reflection takes place in the inner surface. For example, the inside curve of a spoon. Concave mirrors are used in certain types of astronomical telescopes called as reflecting telescopes. Top
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Check out CBSE Class 8 Lesson Explanation of all Subjects, Science, Hindi, Maths, Social Science, English, Sanskrit etc. Our Team had given detailed Notes and NCERT Solutions for All Class 8 Subjects with Chapter wise Solutions. Class 8 Science Lessons. Chapter 1 Crop Production and Management Class 8 CBSE Science Notes, Question Answers
CBSE Science Notes for Class 8. Chapter 1 – Crop Production and Management. Chapter 2 – Microorganisms: Friend and Foe. Chapter 3 – Coal and Petroleum. Chapter 4 – Combustion and Flame. Chapter 5 – Conservation of Plants and Animals. Chapter 6 – Reproduction in Animals. Chapter 7 – Reaching the Age of Adolescence.
NCERT Solutions for Class 8 Science. 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.
- Candidates can use the NCERT Solutions for Class 8 Science to ace up your preparation for the exam. You can use the NCERT textbooks recommended by...
- The only way to score more marks in the Class 8 Exam is through rigorous practice. Follow a proper schedule and clear the exam with ease.
- You can get the NCERT Solutions Chapterwise from our page and use them to score well. Get to know the topics easily you want to prepare as they are...
- NCERT Class 8 Science Solutions prevailing will give you topics on at the end of each chapter. All the 18 Chapters are explained in a detailed way....
- NCERT Solutions are designed in a way that students can quickly grasp the concepts and clear all your queries. Books are self-explanatory and you c...
- You can access the NCERT Class 8 Science Solutions from our web page free of cost. Have an indepth knowledge of science concepts by referring to th...
Chapterwise Class 8 Science Notes PDF - FREE Download. Class 8 Science Notes are prepared to help students easily understand scientific concepts and principles. These Notes break down complex scientific ideas into simple, easy-to-grasp points, ensuring better comprehension and retention. Covering all essential topics, concepts, and terms, the ...
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Class 8 Science Notes CBSE. Chapter 1 Crop Production and Management Class 8 Notes. Chapter 2 Microorganisms: Friend and Foe Class 8 Notes. Chapter 3 Synthetic Fibres and Plastics Class 8 Notes. Chapter 4 Materials: Metals and Non-Metals Class 8 Notes. Chapter 5 Coal and Petroleum Class 8 Notes. Chapter 6 Combustion and Flame Class 8 Notes.
