Science should be fun. It’s just that simple. When you hear people talking about alternative fuel sources you are sure to hear the H word but just how can a lighter than air gas make a car move? Well it’s all because of fuel cells. What’s a fuel cell you ask? I guess your rock isn’t in a free wifi zone is it. Fuel cells convert hydrogen an oxygen (typical stuff that powers a fuel cell, but just about anything rich in hydrocarbons will do, like gasoline for example) into electricity by passing them across or through a material that produces electrons when these two gasses hit it. So what could be more fun than having on that runs a car? It comes with an water cracker to make the O2 and H for the car and instructions. If your looking for a fuel cell to play with this would be where to start.