You will need:

- 3/4 of a glass of water
- 1 teaspoon of potassium permanganate
- 1 tablespoon of liquid soap
- Hydrogen peroxide
- A glass bottle
- Some single-use rubber gloves

Dissolve the potassium permanganate in water, add the liquid soap, and then transfer the mixture to the glass bottle. Carefully but quickly pour in the hydrogen peroxide. The rapidly rising foam will spill out over the top of the bottle. It’s like toothpaste but for an elephant!

Watch the video here.