Matter is anything that has mass and occupies space. The three states of matter are solid, liquid and gas. Water is an example of matter which may exist in three physical states, all of which are interconvertible. 3.2 Physical and Chemical Properties and Changes.
All matter has both physical and chemical properties.
Matter may undergo physical or chemical changes. These changes depend on their physical and chemical properties. The compression of propane gas into liquid propane is a physical change. Physical changes are reversible. A chemical change is synonymous to a chemical reaction.