Foundation for Water & Energy Education
What is the Water Cycle? Activity B
Curious physical scientists follow a lesson on the properties of water with this lesson on distillation. They observe a miniature water cycle model that filters dirty water into clean water. These two lessons combined are an enriching...
US Environmental Protection Agency
Building an Model Aquifer
With almost half of Americans relying on groundwater supplies, it is more important than ever to protect aquifers from possible contaminants. Working in small groups, young environmentalists explore this problem as they create an aquifer...
CK-12 Foundation
Ck 12: Plix: The Rock Cycle: Rocks and Processes of the Rock Cycle
[Free Registration/Login Required] Test your knowledge of the rock cycle by labeling an interactive diagram and with a short quiz.