MATERIALS: Three one-liter plastic bottles (soda bottles will work perfectly) with their caps on, three smaller plastic bottles, potting soil, natural materials (wood chips, fallen leaves, small sticks, etc.), string, grass (or any other quick growing) seeds, an exact-o-knife or box cutter (be careful!), a piece of cardboard, duct tape…
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If you live outside of a metropolitan area, all you have to do to see the effects of erosion on the land is take a walk or a short drive after a heavy rainstorm. However, not everyone has that luxury, so creating your own experiment is the next best thing! PLaying…