Scientists use theories to explain the things around us

The particle theory is used to explain the different properties and behaviours of solids, liquids and gases

A particle model is used to show how the particles are arranged and move

This power point explains the use of models and the particle theory

To see particle animations in solids, liquids and gases either scan the QR code or click the link to Focus eLearning: https://www.focuselearning.co.uk/s/ezdw1bq0gte

This YouTube clip explains the arrangement of particles in the 3 states of matter: www.youtube.com/watch?v=SftogAO_cbQ

Solids, liquids & gases are explained by BBC Bitesize: www.bbc.co.uk/bitesize/topics/z9r4jxs/articles/zqpv7p3

Try this quiz to check your understanding

Now try this quick quiz