Each book in this series follows a packet of energy along a journey.
Each stage of the journey is described in a short chapter, and we learn
what alternative paths the energy might have taken along the way. This
book shows how the energy in falling water is turned into energy to
power an electric car. It explains how hydroelectric power stations
work, the science of electricity, how cars are made and how they use
electricity, and how electric cars work. The topics covered are
illustrated with experiments, amazing facts and scientific discoveries.