Question

What is a reversible change? Give an example. [2 MARKS]

Answer 1

Definition : 1 Mark
Example : 1 Mark

A reversible change is a change that can be undone or reversed. These changes are observed in the physical state, size and shape of the substance. A reversible change does not create a new material.
Example - A blacksmith changes a piece of iron into different tools. For that, a piece of iron is heated to red hot. This also softens it. It is then beaten into the desired shape. It is a reversible change.