The Great Earth Mover

During the first few lessons, students learned that rocks break down. All of the processes that break rock in to smaller pieces is known as weathering. Weathering is one way in which the Earth changes. Erosion, or the movement of earth materials to a new location is another way in which the Earth changes.

To begin to formulate the student's understanding of erosion, we closely examined one of the Earth's greatest movers-water. Students began their investigation into the "Great Earth Mover" by first making a flat model of the earth and observing what happens to water on the surface of the Earth. Students then changed that model so that the water moved downhill. In doing so they learned that water traveled from high places or elevations to low places or lower elevations.


The students built models to help them begin to understand how water moves on the Earth's surface.

Los estudiantes construyeron modelos para ayudarles a comenzar a entender cómo el agua se mueve sobre la superficie de la tierra.