Arrange the following:

(a) Solids, liquids and gases in increasing order of the constant motion of their particles.

(b) Copper metal, water vapour and milk in decreasing order of their intermolecular forces of attraction.

Define:

(a) Matter

(b) Intermolecular forces of attraction

State two factors responsible for the change of state of matter.

What happens to intermolecular forces of attraction when a solid substance is heated?