We are going to look at the picture and try to understand the shape and volume of each state of matter.
The matter has three states: liquid, solid, and gas. Nowadays science considers others. We are going to consider just the three I named.
Shape and Volume:
Gas: has no definite shape. You can look at the picture and see the water steam doesn't have a shape. It's random.
It doesn't have a definite volume either. Molecules from the gas are everywhere.
Liquid: Has a definite volume. Looking at the picture, the glass is open, and molecules are together, they don't escape.
About the shape, take the shape of the container.
Solid: has definite shape and volume.
Answer:
Gas: No definite shape, no definite volume
Liquid: definite volume, take the shape of the container.
Solid: definite volume and shape.