Reuniting Kids w/ Nature – Erosion (2)
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 TIME FRAME: 60 - 90 minutes + 2 - 4…