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Grade 9
Matter Cycles
15. Biogeochemical
15.2 Carbon Cycle, Carbon movement
The Carbon Cycle: Tracing Carbon's Journey Through Earth's Systems
Discover how carbon atoms continuously move through the atmosphere, oceans, living organisms, and rocksand why this cycle is essential to life on Earth.
What You'll Learn
Carbon cycles continuously through Earth's atmosphere, biosphere, hydrosphere, and geosphere.
Photosynthesis transfers atmospheric carbon dioxide into living plant tissues.
Sedimentary rocks represent Earth's largest and longest-term carbon reservoir.
Human combustion of fossil fuels accelerates carbon release disrupting natural balance.
What You'll Practice
1
Students identify carbon reservoirs and the processes connecting each reservoir.
2
Learners distinguish short-term biological cycling from long-term geological carbon storage.
3
Practice questions assess understanding of photosynthesis, decomposition, and combustion effects.
Why This Matters
Understanding the carbon cycle is fundamental to explaining climate change, ecosystem function, and the environmental consequences of human energy use.
This Unit Includes
Practice exercises
Learning resources
Skills
Carbon Cycle
Photosynthesis
Carbon Sequestration
Fossil Fuels
Decomposition
NS Curriculum Aligned