Question

All forms of matter expand on heating and contract on cooling.

True
False​

Answer 1

Answer:

All states of matter expand when heated and contract when cooled. Gases expand most when heated and solids the least because gas particles are already far apart and are much freer to move.

Explanation:

Answer 2

Answer:

true

Explanation:

Heating makes the particles (that form the material) expand or become loose. Cooling makes the particles (that form the material) contract or become tight. The amount of expansion differs in solids, liquids, and gases. Gases expand the most while solids expand the least.