The PlaySTEAM Green Powered Grand Prix is a cool interactive way to teach kids the relationship between potential and kinetic energy while using a rubber band to power a racecar. Simply assemble to racecar, decorate with the included stickers and get racing! Get more than one and have a blast racing while learning the principles of basic physics. A 17 page learning booklet is included and the packaging converts to a cool display stand, complete with a racing stadium background and racetrack base.