Science Class 8 Solutions, MCQ, Notes, Book FREE PDF Download

Pollution of Air And Water Solutions For All Chapters Science Class 8 Pollution of Air and Water NCERT Textbook Questions Question 1. What are the different ways in which water gets contaminated? Answer:Following are the ways by which water gets contaminated: 1. People dispose of garbage in the water. 2. Many industries discharge their harmful […]

Stars and The Solar System Solutions For All Chapters Science Class 8 Stars and The Solar System NCERT Textbook Questions Choose the correct answer in Questions 1-3. Question 1. Which of the following is NOT a member of the solar system? (a) An asteroid (b) A satellite (c) A constellation (d) A comet Answer: (c) […]

Solutions For All Chapters Science Class 8 Question 1. Suppose you are in a dark room. Can you see objects in the room? Can you see objects out-side the room? Explain. Answer: When we are in a dark room then we cannot see objects in the room. We can see the objects outside the room, […]

Solutions For All Chapters Science Class 8 Select the correct option in Questions 1 and 2. Question 1. Which of the following cannot be changed easily by friction? (a) A plastic scale (b) A copper rod (c) An inflated balloon (d) A woolen cloth Answer: (b) A copper rod Question 2. When a glass rod […]

Solutions For All Chapters Science Class 8 Question 1. Fill in the blanks. (a) Most liquids that conduct electricity are solutions of ______ , ______ and ______ (b) The passage of an electric current through a solution causes _______ effects. (c) If you pass current through copper sulphate solution, copper gets deposited on the plate […]

Solutions For All Chapters Science Class 8 Question 1. Choose the correct answer. Sound can travel through (a) gases only (b) solids only (c) liquids only (d) solids, liquids, and gases Answer: (d) solids, liquids, and gases. Question 2. Voice of which of the following is likely to have a minimum frequency? (a) Baby girl […]

Solutions For All Chapters Science Class 8 Question 1. Fill in the blanks. (a) Friction opposes the ______ between the surfaces in contact with each other. (b) Friction depends on the ______ of surfaces. (c) Friction produces ______ (d) The sprinkling of powder on the carrom board _______ friction. (e) Sliding friction is _______ than […]

Solutions For All Chapters Science Class 8 Question 1. Give two examples each of the situations in which you push or pull to change the state of motion of objects. Answer: (i) Push: We close drawer by pushing. We move a wooden box by pushing. (ii) Pull: We draw water from a well by pulling […]

Solutions For All Chapters Science Class 8 Question 1. What is the term used for secretions of endocrine glands responsible for changes taking place in the body Answer: Hormones Question 2. Define adolescence. Answer: The period of life, when the body undergoes changes, leading to reproductive maturity, is called adolescence. The period of adolescence is […]

Solutions For All Chapters Science Class 8 Question 1. Explain the importance of reproduction in organisms. Answer: Reproduction is a vital phenomenon on this planet earth which is essential for existence and continuity of life and species on it, generation after generation. Question 2. Describe the process of fertilisation in human beings. Answer: In the […]

Cell Structure and Functions Solutions For All Chapters Science Class 8 Cell Structure and Functions NCERT Textbook Questions Question 1. Indicate whether the following statements are True (T) or False (F). (a) Unicellular organisms have a one-celled body. (b) Muscle cells are branched. (c) The basic living unit of an organism is an organ. (d) […]

Solutions For All Chapters Science Class 8 Question 1. Fill in the blanks. (a) A place where animals are protected in their natural habitat is called ______ (b) Species found only in a particular area is known as ______ (c) Migratory birds fly to faraway places because of ________ changes. Answer: (a) Wildlife sanctuary (b) […]

Solutions For All Chapters Science Class 8 Question 1. List conditions under which combustion can take place. Answer: Combustion can take place in the presence of: (a) a combustible substance. (b) oxygen, that is, the supporter of combustion. (c) attainment of ignition temperature of the substance. Question 2. Fill in the blanks. (a) Burning of […]

Solutions For All Chapters Science Class 8 Question 1. What are the advantages of using CNG and LPG as fuels? Answer: The advantages of using CNG and LPG as fuels are: 1. They burn with a smokeless flame and so does not cause any pollution. 2. They leave no ash on burning. 3. They are […]

Materials Metals and Non Metals Solutions For All Chapters Science Class 8 Materials: Metals and Non-Metals NCERT Textbook Questions Question 1. Which of the following can be beaten into thin sheets? (a) Zinc (b) Phosphorus (c) Sulphur (d) Oxygen Answer:(a) Zinc Question 2. Which of the following statements is correct? (a) All metals are ductile. […]

Synthetic Fibers and Plastics Solutions For All Chapters Science Class 8 Synthetic Fibers and Plastics NCERT Textbook Questions Question 1. Explain why some fibres are called synthetic. Answer: Some fibres are called synthetic fibres because they are made by man using chemicals. Question 2. Mark (✓) the correct answer. Rayon is different from synthetic fibres […]

Solutions For All Chapters Science Class 8 Question 1. Fill in the blanks. (a) Microorganisms can be seen with the help of a _____ (b) Blue-green algae fix ______ directly from the air to enhance the fertility of soil. (c) Alcohol is produced with the help of _____ (d) Cholera is caused by ______ Answer: […]

Solutions For All Chapters Science Class 8 Question 1. Select the correct word from the following list and fill in the blanks. float, water, crop, nutrients, preparation (a) The same kind of plants grown and cultivated on a large scale at a place is called _____ (b) The first step before growing crops is _______ […]

Crop Production and Management Chapter 1 Science Class 8 Microorganisms: Friend and Foe Chapter 2 Science Class 8 Coal and Petroleum Chapter 3 Science Class 8 Combustion and Flame Chapter 4 Science Class 8 Conservation of Plants and Animals Chapter 5 Science Class 8 Reproduction in Animals Chapter 6 Science Class 8 Reaching the Age […]