A potter working on his wheel-shaped lump of clay into a pot. He then baked the pot in an oven. Do these two acts lead to the same kind of changes or different? Give your opinion and justify your answer.

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Solution

No, these two acts lead to two different types of changes:

Shaping of clay into a pot only the shape of the clay changes. So, this change can be reversed.

Baking of pot in the oven brings about a change in the state of the clay. Therefore, this change cannot be reversed.

Hence, the first action is reversible, whereas the second action is an irreversible change.

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