Materials
- Empty plastic bottle or tall beaker
- Dry Yeast
- Warm Water
- Dish Soap
- 3% Hydrogen Peroxide
- Measuring Cups
- Measuring spoons
- Safety Glasses
- Tub or tray to catch foam
- Location that can handle spills and food coloring (outside or tiled floor, no carpet)
- Liquid food coloring
Students will create a large foaming reaction as the hydrogen peroxide is broken down by the yeast to become oxygen and water.
Article: https://www.scientificamerican.com/article/make-elephant-toothpaste/