Year 4 Sound

Click the organ which receives sound.

Tick the definition of volume.

• object that does not make any sound

• how loud or quiet a sound is

• sound waves that can only travel through air

Tick the definition of pitch.

• how loud or quiet a sound is

• sound waves that can only travel through water

• measure of how high or low a sound is

Match the following

• outer ear

• part of the ear that collects sound waves

• ear canal

• sounds waves move along this part of the ear

• cochlea

• sound waves from the ear drum pass onto this part of the ear

Sound cannot be heard in water.

• true

• false

Sound is created when objects vibrate.

• true

• false

Sound travels in waves.

• true

• false

What is the job of the ear drum?

• collects the sound waves as it vibrates

• make a sound

• understand sound

Label the diagram.

b

a

low pitch

high pitch