Ossicones and oxygen

Frozen red cabbage indicator

Update on the broad bean

Cleaning two pence coins

Yeast and making bread

Kaleidoscope

Play dough traffic lights

Finding conductors with a play dough circuit

Bright and dim play dough lights

Electric play dough

Making a sundial

From picking fruit to eating jam

Traffic lights in a tube

Yoghurt pot plants

How much rain?

Sinking and floating

Colourful celery

Cornflour - solid or liquid?

Making rainbows

Chromatography with felt tips is too difficult and too slow!

Mixing primary colours and using up old food colouring