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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. 
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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...