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प्रश्न
Write true or false
Melting of ice is a physical change.
पर्याय
True
False
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उत्तर
True
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संबंधित प्रश्न
A physical change is temporary. Explain.
Is burning a physical change or a chemical change? Why?
Tick the most appropriate answer.
Physical changes are
The rusting of an iron object is called :
Ice kept in a beaker, slowly melts and turns into water. The water in the beaker on solidification is freezing turns back to ice. Give four reasons why the change from ice to water and water back to ice is considered a physical change.
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Melting of ice is an exothermic, irreversible chemical change.
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Match the following
| Sr. No. | A | B | C |
| 1. | Melting | Change of state from liquid to solid | Ticking of clock |
| 2. | Condensation | Change of state from liquid to gas | Formation of ice cube |
| 3. | Evaporation | Change of state from solid to liquid | Collecting flowers |
| 4. | Freezing | Change of state from gas to liquid | Ice cube to water |
| 5. | Periodic change | Occurs at irregular time intervals | Water to steam |
| 6. | Non-periodic change | Occurs at regular time intervals | Steam to water drops |
Fill in the blanks in the following statements using the words given in the box.
| rusted, colourful, substance, chemical, physical, reversible, iron oxide, object |
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