This image shows how the electrical charges change when a balloon and paper are rubbed together. Static electricity: a buildup of charges in an object Friction: force that opposes motion between two surfaces in contact. Frictional charging: results in a transfer of electrons between the two objects that are rubbed together, in this case the balloon and paper.
Roll a Can with No Hands! materials: soda can head of hair balloon Lay the can on a flat surface. Rub a balloon on your head back and forth super fast! Hold the balloon close to your can, without touch it. The can will roll toward the balloon! Have a soda can race with a friend! via Science Bob