Question

To walk through a waterlogged area, you usually shorten the length of your dress by folding it. Can this change be reversed?

Answer 1

Yes, this change can be reversed as it is a reversible change.

Reversible changes

• A reversible change occurs when a change in a substance can be reversed by changing the conditions.
• Examples of reversible changes are freezing of ice, folding of paper, and folding of dress.

Irreversible changes

• If a change cannot be reversed, it is referred to as irreversible change. New materials are always formed in irreversible changes.
• Burning of wood, cooking of food, etc. are examples of irreversible changes.

Thus, to walk through a waterlogged area, one usually shortens the length of their dress by folding it. It is a reversible change as the dress can be reversed into its original length.