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What is science?
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What is chemistry?
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What is alchemy?
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What kind of experiments did Alchemists do?
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What is ‘Philosopher’s stone’?
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What is the main difference between alchemy and chemistry?
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Name six such products, which we use daily.
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How is the knowledge of chemistry important to mankind?
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What is the contribution of chemistry in the following field?
National Defence
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Who is known as the Father of chemistry? Why?
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___________ deals with the study of matter and the changes it undergoes.
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Match the following words in column A with those in column B:
| Column A | Column B | ||
| (a) | Clothing | (i) | toothpaste, cosmetics |
| (b) | Green Revolution | (ii) | nylon, wool |
| (c) | Building Material | (iii) | agriculture |
| (d) | Commodities of daily | (iv) | mortar, cement |
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Write True or False against the following statement.
Chemistry plays an important role in the national economy:
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Write True or False against the following statement.
Gunpowder is an insecticide:
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Write True or False against the following statement.
Enzymes secreted by our body are chemicals:
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Choose the correct alternative from the choices given below for the following statement:
Trinitrotoluene is used as
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Choose the correct alternative from the choices given below for the following statement:
Which one of the following is a pesticide?
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Choose the correct alternative from the choices given below for the following statement:
Used is an important
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Match the following scientists in column A with their discoveries or contributions in column B.
| Column A | Column B | ||
| (a) | Marie Curie | (i) | Safety Lamp |
| (b) | John dalton | (ii) | Helium |
| (c) | William Ramsey | (iii) | Nobel Prize Winner (two times) |
| (d) | Sir Humphry Davy | (iv) | Atomic Theory |
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State what is Science and give the basic bifurcation of Science with reasons.
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