When you stretch a rubber band it stores potential energy. Specifically it stores elastic potential energy—the type of energy stored when a material is deformed.  A rubber band can be attached to a simple machine—a wheel and axle—to build a simple rubber band–powered car. Experimentation and re-design allows the rubber band – powered car to go further and faster. During Mr. D’s Science Workshop the children explored and experimented with rubber band-powered cars to make their cars go further and faster. Hope you enjoy our video.