Over the past several weeks, David Ogroske’s fifth-grade students at St. Henry’s Area School have been investigating how soil erosion works and its effect on land. The students have experimented with stream tables which included running water through a cup with a small hole and letting the water flow over soil and sand mixed and pressed into one side of the table. The water then created a small stream and deposited the eroded soil on the other side of the stream table, giving students a first-hand look at how landforms are created and how rivers can affect the people living near them.
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