The equipment you'll need, how to prepare and store it and who can use what and when.

The ink in water based felt tip pens consists of different pigments. This practical describes how to separate mixtures of liquids in order to investigate colour.

This practical activity shows how to separate mixtures of liquids to investigate colour using ink in water based felt tip pens.

Guidance on the equipment you'll need, the safety measures to consider and the activities that support teaching hand sewing.