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प्रश्न
Name the following:
The term involved in the change of state from – ‘water to ice’ – which is a physical change.
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उत्तर
Freezing Point.
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संबंधित प्रश्न
Solve this crossword by using the clues that follow.
Across
1. Energy in the form of sunlight is absorbed by the green plants in this process.
4. The reddish-brown substance formed over iron in the presence of oxygen and moisture.
5. This change is permanent and irreversible.
6. The process in which a solid directly changes into gaseous state.
Down
1. It is the change that takes place in case of swinging pendulum of a clock.
2. Occurrence of this is a non-periodic change as well as a natural change.
3. It is a physical change
Make a list of different types of changes with example.
Write true or false
Earthquake is a desirable change.
A physical change is temporary. Explain.
Classify the Following as a Physical Or a Chemical change.
Glowing of an Electric Bulb
Given reason:
Freezing of water to ice and evaporation of water are physical changes.
Wood to sawdust:______:: Wood to Ash: Chemical change
Give two examples for the following case:
Physical changes which are not reversible
The change of state of a substance from solid to liquid and liquid to gas is ______.
Cutting a log of wood into pieces is a chemical change.
