To know how to compare and group everyday materials.
To know that some materials will dissolve in liquid to form a solution.
To know how to use knowledge of solids, liquids and gases to decide how mixtures might be separated.
To know how to give reasons for the particular uses of everyday materials.
To know how to demonstrate that dissolving, mixing and changes of state are reversible changes.
To know how to explain that some changes result in the formation of new materials.