Senses Experiment: Model Eardrum
How the eardrum works.
- A large bowl or pot
- Plastic wrap
- 20-30 grains of uncooked rice
- A cookie sheet
- To make a model of the eardrum, stretch a piece of plastic wrap over your bowl
or pot. Make sure the wrap is on there tight. The plastic wrap represents the eardrum.
- Place about 20-30 grains of uncooked rice on the top of the plastic wrap.
- Now you need some noise. Hold the cookie sheet close to the plastic wrap. Hit
the cookie sheet to create a "big bang" noise and watch the rice grains jump. Now
you know how sound causes your eardrum to vibrate, sending messages to your brain
about the sounds you're hearing!