Using a few items from around the house, you can make a ball float. n STEP 1: Turn the hair dryer on and hold it so the air flow is toward the ceiling. As the flow of air pushes the ball upward, ...
- Set the hair dryer to cool, switch it on, and point it at the ceiling. - Carefully put the ping-pong ball in the stream of air. Hold the hair dryer very steady and watch as the ping-pong ball floats ...
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