1. Blow up the balloon.
2. Rub the balloon on your hair or your shirt.
3. Turn on the faucet and let a nice stream of water flow.
4. Hold the balloon next to the flow of water.
You’ll see the water actually bend towards the balloon! When you rubbed the balloon on your hair, the balloon stole bunches of electrons from your hair. Since the balloon has so many electrons it has a negative electrical charge. This strong charge creates a temporary positive electrical charge in the water flowing from the faucet which causes the water to be attracted to the balloon.