Your budding green engineer will explore the exciting future of fuel-cell automotives in a user-friendly experiment kit. Recently redesigned, this 10th-anniversary edition features a crystal-clear manual that guides curious kiddos step by step as they construct their own model reversible fuel-cell car that runs on, that's right, water. Style Name:Thames & Kosmos 'Fuel Cell 10' Car Experiment Kit. Style Number: 760411. Available in stores.