Question

Observe the image above and conclude which among the following kind of a change is clay undergoing when it is moulded into a caterpillar?

• A. Chemical change
• B. Natural change
• C. Physical change
• D. Permanent change

Answer 1

The correct option is C

Physical change

Physical change: In a physical change no new substance is formed and the chemical composition of substance remains the same.

$\bullet$ Playing clay undergoes a physical change when it is moulded into a caterpillar as the chemical composition of the caterpillar is same as that of playing clay and no new substance is formed.

$\bullet$ No new substances are formed in this so it is not a chemical change.
$\bullet$ This change is made by human effort so it is not a natural change but a man-made change.
$\bullet$ The moulded caterpillar of clay can again be brought back to initial state and hence it is a reversible change.