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प्रश्न
Write true or false
Decomposition of leaves is a fast change.
पर्याय
True
False
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उत्तर
False.
Decomposition of leaves is a slow change.
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संबंधित प्रश्न
Fill in the blank
change in which the substance can be brought back to its original state is called a ............... change.
Tick the most appropriate answer.
Rising and setting of the sun at a given place is a
Fill in the blank
Changes that occur in nature are called ______
Write true or false
Dissolving of solute in a solvent and rusting of iron are both physical changes.
Fill in the blank.
The process of a liquid changing into a solid is called ________
Give a reason why
Freezing of water is a reversible change while burning of a candle – an irreversible 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.
Digestion of food is a physical change.
Give an example of a physical change in which the color of the substance changes.
Explain the characteristics of physical change with examples.
