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प्रश्न
State whether the following is physical or chemical changes.
water cycle in nature —
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उत्तर
physical change,
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संबंधित प्रश्न
Fill in the blank.
An earthquake is a .................. change.
Write true or false
Earthquake is a desirable change.
A physical change is temporary. Explain.
Classify the following as physical or chemical change :
Formation of curd from milk
Read the paragraph and note down the various types of changes it mentions.
It was nearing six o'clock in the evening. The sun was setting. A breeze was blowing. Leaves on the tree were shaking. Sahil was sitting in the courtyard, rolling balls of wet soil, and shaping them into various toys. Then he felt hungry and went into the house. Mother made a dough from wheat flour and fried purees. While eating hot purees, his attention was drawn outside the window. It had started raining. There was lightning, too. Sahil was enjoying his dinner in the dim light.
Select the correct answer from the choice given below to complete the sentence
A change in which a substance retains its identity is a
______ change.
Select the correct answer from the choice given below to complete the sentence
The dissolution of lead nitrate in water is deemed as a _________ change.
Name the following.
The product obtained during a physical change when water converts from a liquid into a solid.
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 |
What kind of change is shown by tearing of paper?
