3: Which of these statements is true?
a) You can see sound waves in the air.
b) Sound waves can travel one mile (1.6 km) in five seconds.
c) Sound waves travel very slowly through the air.

5: Which part of your ear collects sound waves?
a) The pinna
b) The hammer and nails
c) The ear lobe
7: Which parts of your body work together to help you
hear sounds?
a) Your ears, nerve cells, and brain
b) Your ears, bones, and muscles
c) Your ears, nerve cells, and blood
9: Which of these statements is true?
a) Sound waves travel down your ear canal and hit your cochlea.
b) Sound waves travel down your ear canal and hit your eardrum.
c) The eardrum is the smallest bone in your body.
2: What are sound waves?
a) Waves of water that crash noisily on a beach
b) Vibrations in the air
c) Noises that are only made by drums
4: Which of these statements is false?
a) Your ears collect sound waves in the air.
b) Sound waves can only travel in one direction.
c) Your ears turn sound waves into sounds.
6: Why do your ears have earwax?
a) To trap dirt and fight infections
b) To gross out your friends
c) To capture sound waves
8: What is the name of this ear part?
a) The cochlea
b) The pinna
c) The ear canal
11: Your eardrum passes vibrations onto which bone?
a) The malleus
b) The stapes
c) The incus









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version of these questions.
10: What are the names of the three tiny bones in your ear?
a) The malleus, the incus, and the cochlea
b) The eardrum, the incus, and the stapes
c) The malleus, the incus, and the stapes
13: What is the name of this ear part?
a) The incus
b) The eardrum
c) The cochlea


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15: What jobs do your ears do?
a) Help you hear and stop you from getting colds
b) Help you hear and help you sleep
c) Help you hear and help you stay balanced
16: Why do you feel dizzy if you spin around?
a) Because the ground is moving
b) Because liquid in your ears is moving
c) Because your ears stop working




12: Which bone in your ear vibrates against the cochlea?
a) The incus
b) The stapes
c) The malleus
14: Which of these statements is false?
a) Vibrations from the stapes make ripples in the liquid
inside the cochlea.
b) The stapes passes messages to your brain.
c) Hairs inside the cochlea send messages through nerve
cells to your brain.