Feel
and see sound waves at work! All sound is created by vibrations. Those vibrations, called sound waves, move through the air. When they reach your ear, they bang up against your eardrum and make your ear drum vibrate. Your eardrum sends messages to your brain that your brain understands as sound. Sound waves may be invisible, but they make a big impact. In fact, you can see their effects. Use sound waves to blow out a candle. What Youll Need:
Round oatmeal box |
Step 1. Set up your experiment. Heres how:
Step 2. Watch sound waves at work!
When you tapped the box, you sent sound waves moving through the box and out the hole. When the sound waves hit the flame, they made it flicker or go out! TRY A RELATED EXPERIMENT! -- --- > |
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