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Carbon, Nitrogen, and Water Biogeochemical Cycles

Ecological Energetics, Nutrient Cycles, and Biodiversity

8th Grade·Science·Open Global Science

Updated 1 month ago · 3 views

Trace the movement of atoms through atmospheric, biological, and geological reservoirs driven by cellular respiration and nitrogen fixation.

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Ecological Energetics, Nutrient Cycles, and Biodiversity

8th Grade · Science · Open Global Science

5 lessons

Goal

Construct ecological pyramids, quantify biogeochemical cycling, analyze community interactions, and evaluate biodiversity conservation.

5 lessons

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Levels of Ecological Organization: From Organisms to BiomesUp next
Ecological Pyramids of Numbers, Biomass, and EnergyNot started yet
Carbon, Nitrogen, and Water Biogeochemical CyclesYou are here
Community Structures, Symbiosis, and Local Vegetation PatternsNot started yet
Examining Stability and Change in Physical and Ecological SystemsNot started yet

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Learning standards covered

OGS.9.LS.7Open Global Science Standards 2026™ · 8th Grade

Model trophic energy flow through ecological pyramids, nutrient cycling, community structures, local vegetation patterns, and explain how biodiversity ensures ecosystem stability and sustainability.