Final answer:
Solids have a definite shape and volume, liquids have a definite volume but take the shape of the container, and gases have no definite shape or volume.
Step-by-step explanation:
The three states of matter are solid, liquid, and gas. Solids have a definite shape and volume, with particles closely packed. Liquids have a definite volume but take the shape of their container, with particles loosely packed. Gases have no definite shape or volume, with particles widely spaced.