We combined art and science to create our own erupting volcanoes.
To create the same reaction at home
You will need:
Fill the plastic dish with warm water, leaving just a few centimetres of air
Add a few drops of food colouring
Add six drops of dishwashing liquid
Add two tablespoons of baking soda and stir
Pour in ¼ cup vinegar.
The flowing red lava is a basic chemical reaction between an acid (vinegar) and a base (baking soda) which causes carbon dioxide to be produced. The bubbling and foaming is the result of the carbon dioxide becoming trapped in the detergent.