
Carbon Dioxide in the Carbon Cycle
9th Grade · Science · 40 min· Compulsory Education Curriculum Plan And Standards (2022 Edition)
Lesson Preview
Learning Objective
I can describe the role of carbon dioxide in the carbon cycle and its impact on climate change.I can master the preparation methods of carbon dioxide and its physical and chemical properties.
- 1
Photosynthesis is the process where plants use carbon dioxide from the atmosphere to create sugars and other carbohydrates.
- 2
Cellular respiration is essentially the reverse of carbon fixation, where a carbohydrate and oxygen react to produce carbon dioxide, water, and energy.
- 3
About 80% of all the carbon on the planet is locked up as inorganic carbonates in the earth's crust and mantle, also known as the lithosphere.


