Sound

Sound is __________.

• loud

• vibrations

• noise

The quieter a sound is, the more vibrations it causes.

• True

• False

What happens at the MOUTH end of a cup phone.

• Vibrations leave the mouth and enter the cup

• Vibrations travel through the string.

• Vibrations leave the cup and enter the ear.

What happens at the EAR end of a cup phone.

• Vibrations leave the mouth and enter the cup.

• Vibrations travel through the string.

• Vibrations leave the cup and enter the ear.

Vibrations travel best through . . .

• 
• 

Which of these do you think sound travels through the BEST?

• 
• 
• 

Why do you think sound travels BEST through AIR?

Draw and example of how our Cup Phone Experiment Worked.