Not all energy sources are renewable, as learners investigate in this unit. Made up of six lessons that span a few weeks of instruction, the unit has learners examining US energy reserves and consumption, using data to draw conclusions...

Trees are the star of a three-step unit celebrating Arbor Day. Step one takes an in-depth look into the structure of a tree, the process of photosynthesis, and the benefits of the leafy giants. Step two challenges scholars to create a...

This site focuses on alternate energy sources and how they can help us save our environment.

Through 10 lessons and more than 20 hands-on activities, students are introduced to the concept of an environment and the many interactions within it. As they learn about natural and human-made environments, as well as renewable and...

This collection of five learning modules looks at issues related to environmental change and sustainability. Topics addressed include changes in the atmosphere, soil, water, and biodiversity, and what can be done to counteract this and...

In this interactive activity adapted from NASA and the U.S. Geological Survey, learn about Earth's albedo (the ratio of reflected vs. incident solar radiation), how pollution alters albedo, and how ice-albedo feedback may accelerate...