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प्रश्न
Change is the law of nature and occurs in our everyday life, at all times and in all places.
Differentiate between the following change with a suitable example.
Natural and man-made change.
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उत्तर
| Natural change | Man-made change |
| (i) Changes brought about by – nature. | (i) Changes brought about by – man. |
|
(ii) Examples:
|
(ii) Examples:
|
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संबंधित प्रश्न
Classify the following changes as physical or chemical: curdling of milk
Classify the following changes as physical or chemical:- photosynthesis in plants
Write true or false
Rusting of iron is a chemical change.
Fill in the blank
Heat is ________ by a gas during the process of condensation.
Classify the following changes as physical or chemical.
Given reason:
Burning of paper is a chemical change.
State which of the following terms connected with change of state of matter i.e.
(a) Melting
(b) Vaporisation
(c) Condensation
(d) Freezing
pertain to –
- Conversion of a liquid into a vapour or gas.
- Conversion of a liquid into a solid.
- Conversion of a solid into a liquid on heating.
Name the following.
A form of energy required for a chemical change.
Stretching gold coin into a ring is a ______ change.
State whether the following statement is true or false:
Stretching of rubber bands is not a physical change.
