Question

Which if the following properties changes when a material is heated or cooled?

Answer 1

Explanation:

We can change a material into its other states by heating it up or cooling it down. For example, water is a liquid at room temperature. If we cool it down, it changes into a solid – ice. If we heat it up, it changes into a gas – steam.

Answer 2

When a $material$ is heated, it gains thermal energy. Therefore, its particles move faster and its temperature rises. Also when a substance is cooled, it loses thermal energy, which causes its particles to move more slowly and its temperature to drop. Heat makes many solids, especially metals, softer and  melt and easier to shape. As the temperature rises, most solids change into liquid state.