CARBON CYCLE

ELEMENT: CARBON 6 Protons 6 Neutrons 6 Electrons 4th Most Abundant Element on Earth

Carbon’s Past 3,000 B.C. -Used by Egyptians and Sumerians in the manufacturing of BRONZE The first true chemical analyses were made in the 18th century 1789 carbon was listed by Antoine Lavoisier as an element. 

What is the Carbon Cycle? the movement of carbon as it is recycled and reused throughout the biosphere. Carbon is exchanged among the Biosphere Pedosphere Geosphere Hydrosphere Atmosphere.  Bio – Pedo- Geo- Hydro-

related to living matter. Organic vs. Inorganic related to living matter. Not from plants or animals ORGANIC: INORGANIC:

Divided into two components: Carbon Cycle Divided into two components: -Biological Carbon Cycle -Geological Carbon Cycle

Geological Process Most of the earth's carbon is stored in the Earth’s Lithosphere  80% is LIMESTONE  20% is stored as KEROGENS

Geological Process Limestone -  sedimentary rock composed of largely the minerals calcite and aragonite, which are different forms of calcium carbonate (CaCO3).  Kerogens - is a mixture of  organic chemical compounds. Most CARBON got there during the formation of the Earth

Carbonic acid combines with minerals on the earth’s surface forming carbonates (weathering)

Carbonates erode from the surface into the ocean and settle on the ocean floor

Sinks into the earth, heats up, and eventually rises up as carbon dioxide into the atmosphere

GEOLOGICAL CARBON CYCLE Carbon dioxide diffuses into the ocean forming bicarbonates or calcium carbonate (used to make shells and other body parts by organisms such as coral and brachiopod shells) These organisms die and their shells and body parts become carbonate-rich deposits After a long period of time, these deposits become sedimentary rocks, coal, or oil Ocean Carbon Cycle

BIOLOGICAL CARBON CYCLE The movement of carbon through the processes of photosynthesis and cellular respiration Also, the consumption of living matter by other organisms The amount of carbon cycled through annually is a 1,000 times greater than the geological carbon cycle component

6CO2 + 6H2O + light energy → C6H12O6 + 6 O2 PHOTOSYNTHESIS Producers take in carbon dioxide, water, and sunlight to produce sugars and oxygen Chemical Formula: 6CO2 + 6H2O + light energy → C6H12O6 + 6 O2

RESPIRATION C6H12O6 + 6O2 → 6CO2 + 6H2O + energy Carbon dioxide is released back into the atmosphere by breaking down sugar during cellular respiration Chemical Formula: C6H12O6 + 6O2 → 6CO2 + 6H2O + energy

The Bio-Carbon Cycle 1. Producers take in Carbon through PHOTOSYNTHESIS 2. Consumers take in carbon by eating consumers and producers. 3. Consumers release Carbon in the form of CO2 4. Consumers die and their carbon goes into the soil.

Carbon into the Air? CO2 is also released into the atmosphere by: Decaying dead matter Forest fires Volcanoes Burning of fossil fuels (coal, oil, gas)

The Carbon Cycle Carbon Cycle Carbon Cycle #2