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Self Inflating Balloon
![](https://sciencefunkids.com/wp-content/uploads/2021/04/ballon-768x1024.jpg)
Materials:
- Vinegar
- Small bottle
- Baking soda
- balloon
Procedure:
Put two fingers of vinegar in the bottle. Place a teaspoon baking soda in the balloon. Fasten the balloon to the mouth of the bottle and turn the balloon over. Watch the balloon inflate!!
Explanation:
When baking soda (carbonate) comes into contact with vinegar (acid) they react and produce carbon dioxide gas that inflates the balloon.