In a gas, the particles aren’t touching at all, but are flying around randomly. The behaviour of the tiny particles in each case helps explain the properties of each state of matter at the ...

The three states of matter can be represented by the particle model. This model explains the properties of substances in their different states, as well as changes of state. Interactive activity ...

Temperature change and energy - AQA Changes in a material's temperature or state of matter ... volume of gases are all related. Sample exam questions - particle model of matter - AQA Understanding ...