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Biogeochemical Cycles and Earth Systems

9th Grade · Science · Open Global Science

8 lessons

Goal

Analyze the movement of carbon, nitrogen, and water across Earth's spheres and assess how biological processes and anthropogenic disruptions influence climate equilibrium.

8 lessons
0 of 8 done
  1. How Water Cycles Through Earth's SystemsUp next
  2. Carbon Cycling Among Biosphere, Atmosphere, Hydrosphere, and GeosphereNot started yet
  3. The Role of Photosynthesis and Respiration in the Carbon CycleNot started yet
  4. The Nitrogen Cycle: Fixation, Nitrification, and DenitrificationNot started yet
  5. Decomposers and Nutrient Recycling in SoilsNot started yet
  6. Fossil Fuel Combustion and Atmospheric Carbon DisruptionNot started yet
  7. Anthropogenic Nutrient Loading and EutrophicationYou are here
  8. Biogeochemical Feedbacks and Global Climate EquilibriumNot started yet
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Learning standards covered

GlobalOGS.10.ECO.2Open Global Science Standards 2026™ · 9th Grade

Analyze biogeochemical cycles (carbon, nitrogen, and water) across the biosphere, geosphere, hydrosphere, and atmosphere, and assess the role of decomposers, combustion, photosynthesis, and anthropogenic inputs in climate equilibrium.