Water Powered Jet Rocket Car. Water and air are all it takes to propel this car. It's also a maths experiment! Measure the distance and time to work out the speed of the car. Get outside and learn fundamentals of STEM concepts with science and physics. All instructions are in the box!   Speeds up to 12m/s  Simple to launch. Uses water. Quick set up. Water will spray; wear appropriate clothes.                                                                                                                                             What You Get                                                                                                                           Water Powered Jet Rocket Car. Inside the box is your car, a pump and hosepipe, a ramp for tricks, and string.                                                                                                                                      Teach                                                                                                                                      Rocketry-Jet propulsion-Thrust, acceleration and gravity