TeachEngineering
Teach Engineering: The Other Water Cycle
For students that have already been introduced to the water cycle, this lesson is intended as a logical follow-up. Students will learn about human impacts on the water cycle that create a pathway for pollutants beginning with urban...
Smithsonian Institution
Smithsonian Learning Lab: Building Up, Breaking Down
Smithsonian in the Classroom presents Building Up, Breaking Down. Teachers can download this comprehensive teaching package in which students investigate how buildings weather. See what happens to a building once it has been erected....