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Home > Science > Materials > Solids, liquids and gases


  • Gases are often invisible.

  • Gases do not keep their shape or always take up the same amount of space. They spread out and change their shape and volume to fill up whatever container they are in.

  • Gases can be squashed.

  • Heating a liquid can turn it into a gas.

    A kettle boiling
  • Cooling a gas can turn it into a liquid.

    A girl looking into a steamed up mirror

Examples of gases

The sky and clouds to represent air. Labelled 'air'A girl chasing a balloon

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