Turmeric and invisible ink

Stuffed toy emergency medicine

Infrared camera and the disappearing drawings

Oil and water

Piglet plants a haycorn

Beyond the rainbow

Leaves and seeds

Fizzes and bangs

Electric playdough infinity mirror

Frozen red cabbage indicator

Update on the broad bean

Cleaning two pence coins

Cleaning up colourful milk

Sidney the Shield Bug

Electric play dough - a bit more explanation