Watch this straw magically move without even being touched. You can do this, too.

Almost all matter is made up of electric charges. Electric charges help your heart keep beating and your muscles move. Static electricity is simply an imbalance between positive and negative charges. When two objects with different charges are near each other, they attract. When they have the same charge, they repel each other.
The reason you see your hair raise when you rub a balloon on it is that the balloon then has more negative charges than your hair, your hair, which is positively charged, is attracted to the balloon. Want to find out more ways to explore this concept? Keep reading.
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1. Magic spinning straw
When you create static electricity, you're essentially creating more negative charges on an object. That negative charge is attracted to the positive charges in your hands, so you can invisibly control the movement of the straw on top of the bottle.
2.The Flying Bag
The negative charges are at work again in this project. Rubbing both the balloon and the plastic against the towel transfers negative charges to both objects. The like charges repel each other, making your bag float in the air.
3. Make your own "magic wand."
The plastic PVC pipe is the perfect conductor for negative charges. Because the can has more positive charges than negative, it will draw closer to the PVC pipe. You'll look like you're moving something without any hands, but science is really doing all of the work.
4. Make jumping goop (h/t Frugal Fun for Boys and Girls)
The same concept that works with solid objects also works with more liquidy material too. The positive charges in the goop are attracted to the negative ions on the balloon. Try this without adding oil (it makes a little mess, but the effect is worth it).
5. Make lightning
This is an impressive display or static electricity in the form of lightning. You'll also witness how metal conducts electricity. The tin foil in this experiment acts as an electrode (which will attract the electricity). Your balloon is the source of the power. The cathode (tacks and dryer sheet) help direct the charge and increases the voltage of the electricity.
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