Electronic+wiggles

Description: Build, test, and modify an electronic circuit to make sounds

Prerequisite: None

Time: Approximately three class periods to build, test, and modify/improve the circuit

Worth: 100 points

Materials:
 * Electronic components "kit" from Mr. Happer (based on the 555 oscillator)

Assessment
 * Your circuit must be able to make a tone
 * You record how changes to resistors and capacitors affect the pitch of the tone
 * You modify the circuit using variable resistors (supplied by Mr. Happer)
 * You explain how the circuit works (help from Happer!)
 * You write a paragraph suggesting how a circuit like this could be used as part of some meaningful product