In the foil levitation experiment, the teacher demonstrates static electricity by charging a plastic ruler, balloon, or comb through rubbing (usually with wool or hair). When the charged object is brought near small pieces of foil or paper, the static charge induces opposite charges on the foil, causing it to be attracted and then repelled. This makes the foil pieces move or appear to “levitate.” The experiment visually shows how static electricity can exert forces at a distance without direct c