How can we describe the pitch of sounds?

Science

3) Look at the picture above. Does the sound wave show a high pitch or a low pitch?

4) Look at the picture above. Does the sound wave show a high pitch or a low pitch?

We must keep it clean by washing regularly.

We must not put things inside our ears. They could get stuck.

We must turn the volume down when listening to sounds.

1) To look after our inner ear, what must we do?

2) To look after our  ear, outer ear what must we do?

3) To look after our middle ear what must we do? Choose 1.