Evaluating human impact on the environment with composting

Vol. 28 | Gr. 9–12 | U28464

Materials list:
• Now You See It, Now You Don’tSee-Through Compost Container (SB47477)
• Soil [KI01037(P)]
• Rocks (SB50622, SB50623)
• Gravel/pebbles [KI01049(I)]
• Sand (S09940)
• Gloves (C20030, C20031, C20032)
• Safety glasses (SB39510, SB39512)
• Dried plant material
• Samples to place in landfills: Styrofoam, apple cores or bread, and small paper plates