Cauldron ingredients
- Cauldron
- Water
- Baking soda
- Vinegar
- Tablespoon
- Cup
- Pan or tray
How to create your bubbling cauldron
1. Create your cauldron (use a saucepan or similar sized container)
2. Place the cauldron on a pan or tray (or you'll get potion all over the place!)
3. Fill the cauldron with 2 tablespoons of water and stir in a tablespoon of baking soda until it dissolves.
4. Measure 2 tablespoons of vinegar into a separate cup.
5. Pour the vinegar, all at once into the water/baking soda mixture and watch your potion bubble up!
How does it work?
The bubbles that are created are filled with carbon dioxide. The carbon dioxide
is a gas that forms when the vinegar (an acid) reacts with the baking soda (a
base). This is the process that makes cakes rise.
