This practical activity allows children to observe how everyday indicators behave using colour changes and encourages learning about solutions that have acidic, neutral or alkaline properties.

This guidance includes two slime-like substances that children can make.

An activity where children collect and use evidence about the damage acidic drinks cause to teeth.

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.