Curated OER
Water filtration with Plants
Sixth graders explain how soil and plants effect contaminated water in nature. In this filtration instructional activity, 6th graders work in groups to test biofiltration units. Students determine which biofiltration units work...
TryEngineering
Try Engineering: Filtration Investigation
Working in teams of "engineers", students learn about filtration systems and how they can remove impurities from drinking water.