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The science of sound

By Harold Reutter
harold.reutter@theindependent.com

Dodge Elementary third-graders, who studied sound and water during science classes earlier this year, got a quick refresher course from Edgerton Explorit Center staff members Thursday afternoon.

Rick Brown took half the school's third-graders to teach about sound, with Ken Schroeder teaching students about water.

Brown started his lesson by asking students to make various kinds of sounds. The first student responded with, "Ummmm " and Brown said that counted.

Students slapped desks, rapped a metal ring on desks, used their noses, whipped their fingers to create a cracking sound and cracked knuckles to make sounds.

Brown used a balloon to make a sound, blowing first against its side, then blowing into the balloon and holding it by the neck to let the air escape in a squealing sound.  Full Story

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