Which of the following statements are true?

a _____ is something that moves back and forth really quickly.

_____ is how high or low a sound is.

______ is how loud or soft a sound is.

A loud sound is caused by a _____ vibration

A high pitched sound is caused by a _____ vibration

A soft sound is caused by a _____ vibration.

A low pitched sound is caused by a _____ vibration.

Animals use sound to make _____ when there is danger.

Smiling is a way to communicate with sound.

An ambulance siren is a way to communicate with sound

When I hit a pot with a wooden spoon, what causes a sound

Sound can cause vibrations

Vibrations make sound