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The self-inflating balloon experiment is a really easy, but fun science experiment that my kids loved!
How to Make the Self-Inflating Balloon:
In a clear plastic bottle, pour about an inch of vinegar.
Pour 1 Tbsp baking soda into a balloon, using a funnel.
Attach the balloon around the mouth of the bottle and dump in the baking soda.
The gas from combining the two will cause the balloon to inflate.
(It’s a good thing they are so cheap!)