3 Simple Science Experiments - Balloons

The Bed of Nails Experiment00:00:01

Inflate a balloon and observe it popping instantly when pressed against a single pin. However, laying the balloon on a bed of multiple pins prevents it from bursting. This is because the pressure is distributed over many pins, reducing the force on any single point and preventing the balloon from breaking. You can even place a house brick on it if careful.

Baking Soda and Vinegar Balloon Inflation00:00:56

Pour white vinegar into a plastic bottle. Place two tablespoons of baking soda into a balloon using a funnel. Attach the balloon to the bottle's opening, then lift the balloon to drop the baking soda into the vinegar. The chemical reaction between baking soda and vinegar produces carbon dioxide, which instantly inflates the balloon.

Water-Filled Balloon and Fire00:01:42

An air-filled balloon pops immediately when held over a candle flame. In contrast, a water-filled balloon can be held directly in the flame without popping. The water inside absorbs the heat, keeping the balloon's rubber cool enough to resist burning and bursting. The only visible effect is black soot on the balloon's exterior.