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In this outdoor activity, learners investigate the relationship between the slope of a trail and soil erosion.

In this environmental science activity, learners research what is essential for plant life and the necessary components of soil to support plants.

In this outdoor activity, learners make their own organic-rich soil. Depending on where this activity is done, learners will probably discover that their local soil is low in organic matter.

When it rains, water can collect on top of and seep into the ground. Water can also run downhill, carrying soil and pollution with it.

This is an activity about turbidity, or the amount of sediment suspended in water.