How we hear sound

What read the message from the nerves inside the ear?

• the tiny hairs

• sound wave

• the brain

• a medium

Sound can be heard in outer space

• True

• False

A medium is needed to carry sound waves

• True

• False

Sound has a physical form, so it is passed on like a wave

• True

• False

The hairs inside our ears read the messages sent from the brain

• True

• False

Which can replace the word "message"

• signal

• note

• sound

• nerve

In order to travel, sound needs a _.

• vibration

• shake

• message

• medium

It is hard or solid

• firm

• medium

• empty

• shake

It is a substance through which something moves

• attach

• vibrate

• medium

• empty

It is to connect something to something else

• attach

• firm

• vibrate

• medium