Popular Posts
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1. Answer the following (a) Why does friction cause a charge to develop? Ans: (1) Friction takes place between two substances. (2) E...
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ACID, BASE AND SALTS 1. Write answers to the following questions. (a) Explain the difference between acids and bases. Ac...
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Classification of Substances EXERCISES 1. Write the answers to the following questions. (a) How are properties of substances dete... -
1. Answer the following questions: (a) What is meant by autotrophic living things? ANS: (1) Living things need food to survive. (2)...
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1. Write answers to the following questions. (a) Why do we hear musical notes when strings of a sitar are plucked? (b) How does a bat...
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PROPERTIES OF WATER 1. Give reasons: (a) Even when the water at the surface of a lake is frozen, aquatic animals continue to live b...
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1. Answer the following (a) Give a simple experiment to show that a medium is necessary for the propagation of sound. (b) How is so...
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CONTROL AND COORDINATION 1. Explain with examples how living things act in response to their environment. Ans. (1) Every living thi...
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HEALTH AND DISEASE 1. Match the following. Group ‘A’ Group ‘B’ (a) lack of calciu...
Popular Posts
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1. Answer the following (a) Why does friction cause a charge to develop? Ans: (1) Friction takes place between two substances. (2) E...
-
ACID, BASE AND SALTS 1. Write answers to the following questions. (a) Explain the difference between acids and bases. Ac...
-
Classification of Substances EXERCISES 1. Write the answers to the following questions. (a) How are properties of substances dete...
-
1. Answer the following questions: (a) What is meant by autotrophic living things? ANS: (1) Living things need food to survive. (2)...
-
1. Write answers to the following questions. (a) Why do we hear musical notes when strings of a sitar are plucked? (b) How does a bat...
-
PROPERTIES OF WATER 1. Give reasons: (a) Even when the water at the surface of a lake is frozen, aquatic animals continue to live b...
-
1. Answer the following (a) Give a simple experiment to show that a medium is necessary for the propagation of sound. (b) How is so...
-
CONTROL AND COORDINATION 1. Explain with examples how living things act in response to their environment. Ans. (1) Every living thi...
-
HEALTH AND DISEASE 1. Match the following. Group ‘A’ Group ‘B’ (a) lack of calciu...