Question

5. A sheet of paper is folded to make a toy aeroplane. Can this change be reversed ?
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Answer 1

Answer:

Yes, it can be unfolded back.

This is reversible change.

Explanation:

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Answer 2

Answer:

Yes, it is reversible and because there is no change in its chemical composition, it is a physical change. Paper can be easily folded and refolded but if it was cut to make the aeroplane then it is an irreversible change.

Explanation:

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