Dr. Binocs How You Hear Sound

The hammer, anvil and stirrup are called

• three cool bones

• the ossicles

• the pinna

• very important ear parts

A flute is an example of what?

• High pitch

• sound waves

• decibels

• low pitch

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Which number is the cochlea?

• 1

• 7

• 10

• 6

Sound can travel through

• only water

• only air and water

• any solid, liquid or gas

• outer space

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Amplification means to make sound

• quieter

• louder

• high frequency

• low pitch

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A higher number of decibels means

• the sound is safe and will not damage my ears

• the sound is louder

• you should go up closer

• there is cool technology

A whisper has a

• high pitch

• low pitch

• high volume

• low volume

A guitar makes sound by

• its strings vibrating

• the air blowing through it

• the wood sound waves

• the people singing

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The Eustachian tube is in

• the ear canal

• the outer ear

• the middle ear

• the inner ear

1. The drum is hit.

2. The drum sends vibrations as sound waves.

3. The ear drum vibrates, activating the hammer, anvil and stirrup.

4. The cochlea sends the message to the auditory nerve.

5. The brain hears the sound of the drum.

• 1 and 2

• 1, 2 and 3

• 1, 2, 3 and 4

• 1, 2, 3, 4 and 5

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