The flying ping pong ball.

Today we did an experiment called the flying ping pong ball.  All you kneed is a one of two ping pong balls and a hair dryer.

We had to plug in the hair dryer. Turn on the hair dryer and point it upwards and hold it steady.  Place one of the ping pong balls on where the air is blowing out of the hair dryer. You will need to hold the hair dryer still or it will or it will fall of the side. When you have tried one ping pong ball an the hair dryer try it again but try putting a second ball on.

How it worked:
It worked because of the air pushing it up and it doesn't go way up because of the gravity holding it down as well as the air pushing it up.