Friday, January 13, 2012

Evidence of Vibrations

This week we did lots of experiments to find evidence of vibrations in different sounds. Our classroom was a noisy place as we did these activities! :)

Letting air out of a balloon makes a squeaking sound. We could see, hear and feel evidence of vibrations!

When we strike a tuning fork and put it in water, the vibrations make the water splatter.



Popping a balloon also created vibrations, but it scared the guinea pigs!

Striking a tuning fork and touching it to a ping pong ball caused the ball to bounce.



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