Find out why we don't have chocolate mugs and woollen umbrellas by learning about the uses of different materials.
Find out how dissolving works and why some substances appear to disappear when you mix them with water.
Find out about the different methods of separation and how to use them to reverse a mixture.
Find out how to tell the difference between reversible and irreversible reactions.
Find out about the difference between solids, liquids and gases.
Discover how water turns into ice and back again to water, through the processes of freezing and melting.
Find out about the main components of soil and how these affect its properties.
Find out how igneous, metamorphic and sedimentary rocks are formed.
Use your science skills to help Jack, Sam and Jo with their mission to tidy up the planet in this cool free primary science game from BBC Bitesize.
We have a selection of great videos for use in the classroom