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

In this activity, learners turn empty 2-liter bottles into a see-through compost container.

In this activity (on page 7), learners explore the meaning of a "carbon sink." Using simple props, learners and/or an educator demonstrate how plants act as carbon sinks and how greenhouse gases cause

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.