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Physics teacher John Koser has taken Tooth Toons — the innovative hands-on kit that turns students into radio receivers — to a new dimension. Now your students build their sound induction/conduction model with a small DC motor. Induction occurs in the motor, and the frequency is conducted from the dowel to their teeth to the bones of their middle ears. Five student groups can easily assemble Tooth Toons II in one class period. Includes instructions. A transistor radio is required but not included. Grades 7–10.
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