Gases have three key properties: they have mass, occupy space, and have no definite shape or volume. While solids and liquids have a definite shape and volume, gases can be compressed into smaller spaces or expand to fill larger volumes. Gases take the shape of their container but have no set volume of their own.
8. The gases in the balloon take the shape of the balloons. A
gas has no definite shapes.
9. Do gases have definite
volumes?
Gases occupy less space
when compressed.
They can also flow and
spread out to occupy a larger
space.
This shows that a gas has no
definite volume.
