Foam At The Mouth Kitchen Science Experiment
In this fun and easy kitchen science experiment for kids, we’re going to use a chemical reaction to foam at the mouth.
- Carbonated soda
- Baking soda toothpaste
Note: Use adult supervision while performing this demonstration and do not swallow the mixture.
- Brush your teeth as normal.
- Do not spit when finished.
- Now take a sip of the carbonated soda.
- Lean over the sink as the foam comes rolling out.
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How it Works:
The baking soda in the toothpaste is a base and produces carbon dioxide when exposed to an acid in what is called an endothermic chemical reaction. Carbonated sodas contain phosphoric acid to give them their distinctive tingle. When the baking soda and phosphoric acid mix, the chemical reaction begins and carbon dioxide is created which causes the toothpaste to foam and fill up your mouth.
Make This A Science Project:
Try different brands of baking soda toothpaste. Try different sodas. Try different temperatures of soda.
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