Thursday, February 25, 2010

Sound Science


A couple of weeks ago, our grade four class learned about sound and vibrations. We've learned how to make a sound using a tuning fork, salt, plastic wrap and a plastic bowl.
We put plastic wrap over the top of the bowl and made it a little tight. We poured a little salt on the plastic wrap then tapped the tuning fork and put it gently on the plastic wrap. The salt bounced up and down.

By Jessica and Kortnee

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