Build a car from the wheels up to race down a track against your opponent. These cars are't powered by gasoline, fuel or battery power – they are propelled by pressurized air! Attach a plastic bottle to your car, pump it full of air and send it racing down the track! Experiment with the design of your car and the pressure of the air in the bottle to make your car the winner. Using Newton’s Third Law of Motion, racers will learn about the equal and opposite forces propelling the car down the track.