Science 12/4

The loudness or volume of a sound

• is how high or low the sound is.

• is measured in metres.

• is how loud or quiet the sound is.

• is how fast the source of the sound vibrates.

To digest means

• to swallow something.

• to eat.

• to talk.

• to break down food so it can be used by the body.

All food chains begin with a

• An arrow

• Producer

• Consumer

• Animal