Three Questions In One: 1. solid
a. what are its physical properties

2. liquid
a. what are its physical properties

3. gas
a. what are its physical properties

solid: Has a definite shape and volume. liquid: Has a definite volume, but take the shape of the container. gas: Has no definite shape or volume. change of state: When matter is converted from one of the three states (example: solid, liquid, or gas) to another state.