Question

solids _ on heating and _ on cooling​

Answer 1

Solids expand on heating and contract on cooling.

• Solids expand when they are heated. They also contract when they are cooled; this process is called thermal contraction. It is hard to see solids expand and contract because the molecules move only slightly farther apart or closer together.

Answer 2

Solids on heating becomes water vapour

Solids on cooling becomes Ice.

hopes this answer helps you.