In recent years, there has been much concern about the world's reliance on nonrenewable resources, such as oil. Scientists are attempting to decrease our dependency on oil - something cars require to work. Hybrid cars, which run on alternative energy sources like sunlight, corn, and biofuels, may be the key to using less oil. "How Do Hybrid Cars Work?" discusses how these machines work, the science behind the energy they make, and what the use of hybrid cars means for the planet. Full-color photographs and illustrations keep young readers enthralled in the science behind hybrid cars.
Cars have been around for more than 100 years. They have changed a lot in that time. Today’s cars are faster and more reliable than those of long ago. They are also safer and more comfortable.
One thing has not changed: the way most cars work. Most cars of the past ran on fuel made from oil. That’s still true today. Usually the fuel is gasoline (often called “gas”for short). Sometimes it is diesel fuel. Both come from oil.