States of matter teaching resources

States of matter resources help primary students understand the three main forms matter takes — solid, liquid and gas — and explore what causes matter to change from one state to another.

The collection covers the key properties of solids (fixed shape and volume), liquids (fixed volume, takes the shape of its container) and gases (no fixed shape or volume), everyday examples of each state, and how heating and cooling cause state changes: melting, freezing, evaporation, condensation and boiling. Resources include sorting activities, state change experiment guides (ice melting, water boiling), diagram labelling tasks and comprehension worksheets.

Connects naturally to the water cycle and weather topics. Suitable for Years 2–6.