Presents information about different forms of energy, how human beings use it, the problems that the use of certain energy sources can cause, and how to reduce negative effects on the environment by c
Presents information about trash and other waste products and the dangers that they pose if they are not disposed of properly, and teaches the importance of reducing, reusing, and recycling items in o
Presents information about water, the different uses that people have for it, the limited amount of fresh water available in the world, ways to conserve water, and ways to avoid polluting water.
Presents information about air, including why animals and plants need it, how some human activities create harmful air pollution, and how to help prevent the air around us from becoming polluted.
