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Science

Particle model

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Liquids

Mercury, lemonade and water are liquids at room temperature.

The particles in a liquid are:

  • close together

  • arranged in a random way

The particles in a liquid can:

  • move around each other

The bonds in a liquid are strong enough to keep the particles close together, but weak enough to let them move around each other.

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

Property of liquids Why they are like this
They flow and take the shape of their container. The particles can move around each other.
They cannot be compressed or squashed. The particles are close together and have no space to move into.

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