Design It! Blinking Lights Guide   Stock #: 651658 Price: $9.95 Quantity: Quantity in Basket: none BUY IN BULK! Quantity: 10-99999 Price Each: $8.95 SAVE MONEY! After getting acquainted with some basic electrical circuits using batteries and bulbs, children are challenged to design a flashlight from a soda can, cardboard, battery, and wires. They also design a rotary switch, which they use to control a model traffic light system. Instructional material only. Also see Explore It!

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