A detailed overview of the greenhouse effect, with explanations about Earth's atmosphere gases referred to as greenhouse gases, and the factors that influence the heat-trapping ability of a greenhouse. All information is reinforced...

A short discussion of several different types of pollution and of the harm that it can do to the Earth. Includes a two-question reading-comprehension quiz.

Students learn how rooftop gardens help the environment and the lives of people, especially in urban areas. They gain an understanding of how plants reduce the urban heat island effect, improve air quality, provide agriculture space,...