Second in a series of five lessons, this lesson encourages preteens to consider cities as urban ecosystems. First, they keep a food diary for a few days. They visit the Natrional Agricultural Statistics Service website for current data...

Students brainstorm and discuss what it means for a species to be considered endangered and/or extinct. They research animals in Puerto Rico and choose one that is considered endangered and create a poster about it. In addition, they...

Brainstorm ideas to design a sustainable guest village in the Sonoran Desert. The first installment of a nine-part unit teaches young environmental scientists about the basics of the Saguaro National Park and about sustainable design....

Teach your environmental studies, life science, or engineering class how an internal combustion engine works using the first few slides of the accompanying presentation. Then, focus in on the resulting carbon emissions. Finally, take a...