We have been having a lot of fun with copper tape, led lights, and batteries.
For May 4th (May the Fourth Be With You), we made some Star Wars light up cards. We added a cut straw to the led light to make it shine like a light saber.
The copper tape the is attached to the bottom of the battery is connected to the negative end of the led. When the positive end of the led hits the positive part of the battery when the card closes, the circuit is complete and the light turns on.
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