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Particle model



Steel, plastic and wood are solids at room temperature. Ice is solid water.

The particles in a solid have the following characteristics:

  • they are close together

  • they are arranged in a regular pattern

  • they are held together by strong forces called bonds

  • they can vibrate in a fixed position

  • they cannot move from place to place

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The table shows some of the properties of solids and why they are like this.

Property of solids Why they are like this
They have a fixed shape and cannot flow. The particles cannot move from place to place.
They cannot be compressed or squashed. The particles are close together and have no space to move into.


The particle model activity

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