Concept 1: Chemically Propelled Car
This vehicle will use the same chemical principle as seen in countless science fair projects. A mixture of vinegar and baking soda, or perhaps something more volatile, will react inside the clear vehicle and then shoot against a turbine like device, propelling the car. Also, the car will leave a trail of goo, the result of the chemical reaction, to mark its path.
This little car will show children the power of chemical reactions, in a high speed and entertaining fashion. The clear body of the car will allow the children to see chemistry at work. It also gives them the chance to experiment with different chemicals, to enhance the performance of their vehicle.