cfu june 26

Open Ended

What is Dr. Kim an expert on?

Multiple Choice

How do sound waves helps us hear?

• they send vibrations in the air

• the thin membrane over the skin

• sound waves are like a drum

• the vibrations moving back and forth

Multiple Choice

What is the function of the outer ear?

• to produce ear wax

• to have the ear canal

• to catch sounds and guide them to the middle ear

• to look funny

Labelling

LABEL THE PARTS OF THE EAR

Drag labels to their correct position on the image

MIDDLE EAR

OUTER EAR

INNER EAR

Hotspot

Select the sentence that supports the function of the cochlea

Match

Match the following:

Put the steps to hear in order

• STEP 1

• STEP 2

• STEP 3

Soudn waves enter the outer ear and travel down the ear canal

the tiny bones in the middle ear vibrate, causing the hairs in the cochlea to vibrate

the nerves attached to these hairs sends messages to the brain

• Soudn waves enter the outer ear and travel down the ear canal

• the tiny bones in the middle ear vibrate, causing the hairs in the cochlea to vibrate

• the nerves attached to these hairs sends messages to the brain

Multiple Choice

What is they key idea of the chapter?

• the stirrup is the smallest bone in our ear

• The three parts of the ear work to enable hearing

• there are three bones that make up the middle ear

• vibrations in the air called sound waves help us hear