What is noise measured in?
Decibels
Can people make noise in their sleep?
Yes, they can
What's snoring?
Noises people make in their sleep
What does 'deaf' mean?
Deaf people can't hear anything.
How do deaf musicians 'hear' music?
They use vibration
Is it true that our voices can break metal?
No, they can break glass
What can noises over 140 decibels do?
Damage your hearing
What's the loudest animal in the world?
The blue whale
The loudest noise ever heard came from a ...
volcano
