What is a good electrical science project to do with a 12-year-old?

An electrical project on a list at ScienceBuddies.org suggests testing the electrical conductivity of various materials. Additional projects include constructing simple electrical circuits, making electric paint, and using microbes to turn mud into energy.

Making electric modelling clay exhibits how to use various types of circuits to light up LEDs in clay creations. Other ideas involve building a crystal radio or making a hand-motion electrical generator. The young scientist may build a simple motor or use solar energy to explore the speed of light. Students can also construct a dance pad that causes a series of lights to flash when someone steps on it.