Balloon Experiment

We needed:

funnel
bottle
vinegar
baking soda
teaspoon
balloon

What we did:

1. We put the balloon over the funnel and half filled it with baking soda.
2. We put the funnel on the bottle and poured in the vinegar. (about a cup full )
3. We put the balloon opening carefully over the bottle and let the baking soda drop in.

What happened?

The vinegar and baking soda mixed together and made carbon dioxide which made the balloon inflate.