- 3 Balloons
- 3 Empty clear 2-Liter soda bottles (remove labels)
- 12 oz white wine vinegar (4 oz per soda bottle)
- 9 tablespoons of baking soda
What To Do:
- Place 4 oz vinegar into each soda bottle.
- Put 2 tablespoons baking soda into 1 balloon, 3 tablespoons of baking soda into another balloon, and place 4 tablespoons baking soda into the last balloon.
- Place each balloon on the opening of the 3 2-Liter soda bottles (be careful not to add the baking soda yet)
- One at a time, tilt the balloon while still attached to the soda bottle, so the baking soda is poured into the vinegar at the bottom of the soda bottle.
- Repeat for the other 2 soda bottles
*The balloon should inflate*
*The different amounts of baking soda allow for variation in discussion and a longer demonstration*
Location and Appropriate Age Group:
- This demonstration can be messy during prep but is ok to perform inside or outside.
- This demonstration is great for students of all ages.
How It Works:
- When the baking soda combines with the vinegar and through a chemical reaction creates a carbon dioxide gas. This gas tries to escape through the opening at the top of the bottle, where the balloon catches it, thus blowing up the balloon.