Question

Matter __________ on heating and _________ on cooling.

• A. Expands
• B. Contracts

Answer 1

• Anything that occupies space and have mass is called matter. Matter exists in all three states i.e. Solids , Liquids and Gases.
• Example

1. Ice melts to form water while heating i.e. increasing temperature.
2. Water freezes to form ice while cooling i.e. decreasing temperature.

• Matter expands on heating and contracts on cooling.