Printables
National Weather Service

The Water Cycle

For Teachers 4th - 6th
Looking for a full-color, labeled water cycle diagram? You found one! From evaporation to precipitation to plant uptake and everything in between, it's all here and beautifully illustrated. 
Lesson Plan
Curated OER

Determining the Percolation Rate of Soil

For Teachers 9th - 12th
Students discover how water moves through different types of soils. In groups, they use the same sample from a previous activity and empty it into a milk carton in which they have layered with cheesecloth to determine the percolation...