Science glossary film: Gas

The state of matter in which particles are widely separated and are in constant random motion. Particles in a gas have more energy than in a liquid or solid, and move about to fill the container they are in. Gases can flow, and can be compressed. In theory any chemical can exist as a gas given the right temperature, provided it does not break down chemically first.

Particles in a gas have more energy than in a liquid or solid, and move about to fill the container they are in. Gases can flow, and can be compressed. In theory any chemical can exist as a gas given the right temperature, provided it does not break down chemically first.