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The particle model of matter

Part of Chemistry

  • The particle model of matter

    • Solids, liquids and gases

      Particles can be atoms, molecules or ions. Particles behave differently in solids, liquids and gases. The particle model explains the differences between solids, liquids and gases.

    • Changes of state

      Solids, liquids and gases change state when they are heated or cooled. Processes such as evaporation and boiling change the state of substances

    • Gas pressure

      Pressure in gases is caused by particles colliding with the walls of the container.

    • What is water?

      Learn about water in this KS3 guide.

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