1. The Carbon Cycle Justice Hunter, Tionni Hill, Karman Lam, Jane Kim, Jessica Gold, Kelsey O’Callaghan, Camille Tucker, Brittany Edghill

2. Carbon Atom Atomic Number = 6 Atomic Symbol = C Atomic Weight = 12.011 3 Forms of allotropic carbon: graphite, diamond, fullerines

3. CarbonCycleCarbonCycle

4. Introduction The carbon cycle involves all aspects of the world like the atmosphere, soil, and water. Humans, plants, and animals also contribute to the cycle. The carbon cycle is a closed system which means that there is a fixed amount of carbon in the world.

5. Soil All ecological cycles involves soil. These cycles include the nitrogen cycle, the water cycle, and the nutrient cycle. It is thought that more carbon is stored in the worlds’ soil than is circulated in the atmosphere.

6. Soil in the Carbon Cycle Soil benefits the carbon cycle through photosynthesis, respiration, and decomposition. Carbon is absorbed through photosynthesis and decomposition. It releases the carbon back into the atmosphere through respiration.

7. Fossil Fuels Fossil Fuels are coal, oil, natural gas, and gasoline. They are used by industry, power plants, and automobiles. They release carbon into the atmosphere. The Carbon does not return which unbalances the system.

8. Carbonic Acid Oceans take CO2 from the atmosphere. The CO2 dissolves in the water to create carbonic acid. CO2+H2O=H2CO3 (carbonic acid) The carbonic acid then disassociates into hydrogen ions and bicarbonate ions. The hydrogen ions react with and alter most common minerals. The weathering of these minerals results in clays and soluble ions like calcium, iron, sodium, and potassium.

9. Water Bones & shells of marine animals collect on the sea floor. Bones & shells are made up of limestone, which contain carbon. They are deposited on the sea floor, and stored from the carbon cycle for many years. Carbon is released back into the atmosphere if the limestone is metamorphosed or it is melted. The amount of limestone that can be deposited depends on the amount of warm, tropical & shallow oceans on the planet.

10. Carbon Dioxide The primary gas of the carbon cycle (DUH!) Carbon dioxide is released into the atmosphere through: plants, animals, factory emissions, & even us, humans

11. The Green House Effect Carbon dioxide is a greenhouse gas The atmosphere has not held this much carbon for at least 420,000 years! Carbon dioxide and other greenhouse gases cause our planet to become warmer

12. How do we affect the cycle and the effect? Through combustion, we influence both the carbon cycle and the green house effect. Through deforestation, we emit more carbon dioxide into the atmosphere.

13. They All Work Together The carbon cycle only works and is because of the water, oxygen, nitrogen cycles. They all work together.

14. How does the carbon cycle make the earth a dynamic system?