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Member Since: January 7, 2010

Country: United States

  • I taught a small class of elementary school students recently. I briefly explained atoms, and told them some atoms had so many electrons they didn't mind sharing. We all ran around chairs, orbiting. Then, I told them how a battery's voltage pushes electrons from one atom to the next, pulling kids from one chair orbit to another chair. We made lemon batteries, designed a simple LED circuit, and built it. They could accept that current was how many electrons were passing along the atoms (copper wire), and the resistors let fewer electrons pass. They could even accept the acid in the juice made the metals more willing to share their electrons. It was very interactive, and they really caught on.

  • ...and that's when their mascot knocked me down and stole my sailor suit. Freaking Badgers!