What this lesson teaches
Decomposition and nutrient cycling.
Start a compost bin and track decomposition!
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Decomposition and nutrient cycling.
A multi-week project that produces a tangible result (from food scraps to usable compost) demonstrates a systems concept — circular economy — that cannot be adequately grasped in a single lesson. The time investment creates personal stakes that accelerate understanding of decomposition, nutrient cycles, and sustainability.
1. Layer soil and scraps. 2. Add water. 3. Close loosely. 4. Check every 3 days. 5. Record changes.