Science Block 11 Sound and States of Matter

What do we use our ears for?

• to hear sounds

• to smell things

• to see objects

When something makes a sound it....

• echoes

• vibrates

• is always quiet

Vibrations travel

• in straight lines

• in all different directions

• nowhere

Vibrations can travel through solids, liquids and gases.

• True

• False

In a solid object, the particles are

• nowhere

• very close together

• very loose

What part of the ear is this?

• stirrup

• pinna

The smallest bone in the human body is in the ear. It is called

• pinna

• hammer

• stirrup

The ear is made of 3 main parts. They are called:

• Flaps, Drum and Nerve

• the outer ear, middle ear and inner ear.

Which part of the ear sends messages to the brain?

• hammer

• auditory nerve

• stirrup

Sounds can be low and high. We call this

• noise

• quiet

• pitch