How to identify materials

Find out why we don't have chocolate mugs and woollen umbrellas by learning about the uses of different materials.

What are irreversible changes?

Find out how to tell the difference between reversible and irreversible reactions.

What is separation?

Find out about the different methods of separation and how to use them to reverse a mixture.

What is dissolving?

Find out how dissolving works and why some substances appear to disappear when you mix them with water.

What are the states of matter?

Find out about the difference between solids, liquids and gases.

What are freezing and melting?

Discover how water turns into ice and back again to water, through the processes of freezing and melting.

What is evaporation and condensation?

Find out about changing state from a liquid to a gas by the process of evaporation and condensation.

What is the water cycle?

Find out how water is constantly moving around the environment through the water cycle.