Ear Science: My! What big ears you have! (Central Nervous System)

 

My to-be teen was not keen on my big, bad wolf reference. Behind this model of the ear is a major eye roll! 

Paper ear model courtesy of Ellen McHenry https://ellenjmchenry.com/cut-and-assemble-paper-model-of-the-human-ear/

While the big kids were challenged with making models of the inner ear, the wee took part in Sound Science.

Dancing Rice: slip the top of a balloon snugly over a mug. The balloon represents your ear drum. Place a few grains of uncooked rice on the taut balloon. Crash somethin loud, like cymbals or wooden spoons to a cookie sheet. The rice should move due to sound vibration.

Chiming Spoon: Tie a spoon or steel ruler 'loosely' to the center of a string/shoelace. Wrap each end of string around each index finger. Place the stringed fingers just inside your  ear lightly. Swing the spoon to hit an object. You should hear a residual ringing or chime that others cannot.