Does this make sound? All About Sound What is this sound?
100
Yes
Microphone
100
Alexander Graham Bell
Who made the first telephone?
100
Yawn
What is this sound?
200
No
Paper
200
It would be silent.
What if there was no sound in the world?
200
Wolf
What is this sound?
300
Yes
Baseball bat
300
It helps us be alert.
It helps us learn.
What is the importance of sound?
300
Ringtone
What is this sound?
400
Yes
Radio
400
We use it for entertainment and communication.
How do people use this energy source of sound?
400
Doorbell
What is this sound?
500
No
Pencil
500
Yes it was a big change.
Was the first telephone a big change in the world of sound?
500
Fire crackling
What is this sound?






SOUND!

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