Grade 5 Science and Tech Development: Transportation

Exciting, close-up photos let readers look inside the engines of electric, gasoline-electric hybrid, and hydraulic hybrid cars. Environmental topics such as the burning of fossil fuels, pollution, greenhouse gases, and global warming are also addressed.

Some of Hollywood's finest discuss the effects of cars and the use of fossil fuels on the environment and promote the use of hybrid card.

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.