Sounds are made of _____________ that vibrate.

The unit that we use to measure frequency is

One of these IS NOT a type of sound:

• Soft

• High-pitched

• Low-pitched

• Decibels

Listen carefully the audio. What type of sound is it?

• High-pitched

• Low-pitched

Listen carefully the audio. What type of sound is it?

• High-pitched

• Low-pitched

Listen carefully the audio. What type of sound is it?

• High-pitched

• Low-pitched