What can you make that will blow up with bake baking soda?

A classic example of a reaction that produces a significant amount of gas and can "blow up" is the combination of baking soda (sodium bicarbonate) and vinegar (acetic acid). When mixed, they react to form carbon dioxide gas, which can create pressure if contained, leading to an explosive release. For a fun science experiment, you can place the mixture in a sealed plastic bottle with a balloon on the top; the balloon will inflate as the gas builds up. Just be cautious, as too much pressure can cause the bottle to burst!