Vinegar Balloon

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Ingredients Required:

  • 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:

  1. Place 4 oz vinegar into each soda bottle.
  2. 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.
  3. Place each balloon on the opening of the 3 2-Liter soda bottles (be careful not to add the baking soda yet)
  4. 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.
  5. 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.
Vinegar balloon.jpg