Create a chemical reaction that looks like very, very large toothpaste!
What you need:
- 6% hydrogen peroxide – you can purchase this from a chemist, not the supermarket
- yeast powder
- warm water
- empty soft drink bottle
- dishwashing liquid
- food colouring (optional)
- rubber gloves
- safety glasses
- funnel or jug
What to do:
- Put on the safety glasses and gloves.
- Pour 100mL 6% hydrogen peroxide into the soft drink bottle using a jug or funnel to avoid spills.
- Add a squirt of dishwashing liquid and some food colouring.
- Add a packet of dry yeast with 4 tablespoons of warm water. Mix well.
- Pour the yeast into the bottle and stand back.
What happens:
Hydrogen peroxide is made up of hydrogen and oxygen. The yeast causes the release of the oxygen. The oxygen is in the form of a gas, which gets trapped in the dishwashing liquid, causing the entire thing to froth up. If you use a smaller bottle, you will get a more impressive result!
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