Sound Energy Crossword

A synonym for vibrations
Sound energy cannot travel through ___
Does sound travel faster through air or water?
Which travels faster: light energy or sound energy?
What units are used to measure a sound's frequency?
What units are used to measure the volume of sound?
Humans can detect sound vibrations with their ears and their ___
Your ear has nerves that send sounds to your ___
A volcanic eruption caused the ____ natural sound on earth
If you put your fingers on your throat and sing, you can feel the vibrations caused by your ___ ____
Underwater, dolphins can hear sounds that are over ___ km away (write in words)