Hearing sound
 Sounds travel as waves and pass through the canal of the external ear. The waves cause the ear drum to vibrate (The ear drum separates the external ear from the middle ear.) The vibrations of the ear drum cause the 3 small bones in the middle ear (hammer or Malleus, anvil or incus, stirrup or stapes) to transfer the energy of sound vibrations to the fluids of the inner ear. Vibrations in this fluid stimulate the delicate nerve hair cell fibers as impulses or signals. The hearing nerve then transmits these signals to the brain where they are interpreted as understandable sound.
Ear Diagram

A few activities with Sounds

• Describe what you hear - Use a few empty film canisters,
add some rice in one, put a few bells in another,
Try some odd things - flour, paper hole punches, grass clippings, pennies
Can you identify the contents by sound?

•Go on a listening hunt
Describe the sounds that you hear. Are there any unknown sounds?

•Make a list of happy/kind words and sounds
Why do they make you Happy?
What are some SCARY sounds?
What makes them scary?
Can you think of a way to make them sound SILLY?
Sound Word Search

 
 
return to Squishy, Squishy index