Question

1. Can you get back the matchstick from the ash left over by a burning matchstick?
2. What type of change will take place when you heat a few cubes of ice ?
3. A pinch of salt is dissolved in water. How can this change be reversed ?
4. Give two examples of reversible change.
5. A sheet of paper is folded to make a toy aeroplane. Can this change be reversed ?​

Answer 1

Answer:

1. No

2. Physical change.

3. Melting of ice and Boiling of water.

4. Yes it can be reversed.

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Answer 2

Answer:

1. No
2. physical changes
3. Melting of ice and boiling of water
4. Yes it can be reversed

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धन्यावाद ।