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When you run the comb through your hair, invisible electrons (with a negative charge) build up on the surface of the comb. This is called static electricity, which means “non-moving electricity.” The electrons have the power to pull very light objects with a positive charge toward them. Let’s do an experiment!
- Dry plastic comb
- Indoor faucet
- Clean dry hair on your head
- Turn on the faucet and slowly turn down the water until you have a very thin stream of water flowing.
- Take a plastic comb and brush it through your hair ten times.
- Slowly bring the comb close to the flowing water but do not touch the water!
- As you move closer, the water should bend toward the comb.
- Does the size of the comb affect the static ability to bend water?
- Does the material that the comb is made of affect the static power?
- Does the number of times you comb your hair change the angle of the bent water?