Science glossary · United Kingdom
States of matter
The forms matter takes: solid, liquid and gas.
A solid keeps its shape, a liquid takes the shape of its container, and a gas spreads out to fill any space. Heating or cooling can change the state.
Example: Ice (solid) melts into water (liquid), which boils into steam (gas).
Lessons, worksheets, practice and tools on this: Matter and materials.
Related words
- Density: How much mass is packed into a certain amount of space.