Knowing that sound is caused by vibrations, third graders are exploring various properties of sound. Our first focus will be on volume. How do the vibrations change when the volume gets louder? Softer? We've introduced two new technologies to help us see the differences in volume--a tone generator (with beans on top) and a door fiddle (made of string).
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Mrs. BrinzaWhat sounds have you heard today? Archives
April 2014
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