The Carbon Cycle. By James Burrows, Nadia Molinero, Emilie Vanness and Tatijana Vujicic.

 A chemical element  Symbol “C” and atomic number 6, part of group 14 on the Periodic Table.  Non-metal and *tetravalent, only allowing 4 electrons to form chemical bonds with it.  Found in 2 major forms; diamond and graphite  Found impurely in charcoal, soot and coal.  Fourth most abundant element in the universe.  Every organism on Earth needs carbon for either structure or energy  Found in forms such as gas carbon dioxide, to solids like limestone, wood and plastic *Tetravalent: having a valence of four What is Carbon?

 The sun  The stars  Comets  Atmospheres of most planets  Nearly every single living thing Where is Carbon Found?

PoolsAmount in billions of metric tons. Atmosphere578 (in 1700) – 766 (in 1999) Soil Organic Matter Fossil Fuel Deposits4000 Ocean38,000 – 40,000 Marine Sediments and Sedimentary Rocks 66,000,000 – 100,000,000 Terrestrial Plants Carbon Pools Carbon is stored in the following major pools; -Organic molecules in living or dead organisms -Carbon dioxide -Organic matter in soils -Fossil fuels and sedimentary rock deposits -Dissolved atmospheric carbon dioxide

What is the Carbon Cycle?  Biogeochemical processes where carbon is subjected to chemical reactions  Organic circulation of carbon from the atmosphere, into organisms and back  Moves through the atmosphere, oceans, water, living things, soil and geological deposits.  Changes form and moves through different reservoirs

The Carbon Cycle Carbon Cycle. Carbon is interchanged between active pools due to differing processes; Photosynthesis and respiration between the land and the atmosphere, and diffusion between the ocean and the atmosphere.

 Biology plays an important role in movement of carbon between land, air, and ocean.  Multicellular life depends on production of sugars from sunlight and CO2.  Plants take in carbon dioxide and use sunlight to convert it to sugars and oxygen  When animals eat the plants, they acquire the carbon that was stored there Biological Carbon Cycle

Geological Carbon Cycle  Component of the cycle that interacts with rock cycle  Carbonic acid forms by reaction with atmospheric carbon dioxide and water  Acidic rain reaches the Earth’s surface, and reacts with minerals  Through deposition and burial, calcite sediment forms limestone

 Odorless gas produced by burning carbon  Naturally present in the air  Absorbed by plants during photosynthesis. Carbon Dioxide. Produced by… *Volcanoes *Respiration *Burning fossil fuels *Decaying animals * burning rain forests *Cars

 Significantly altering the natural carbon cycle  Burning of fossil fuels and deforestation increases CO2  Releases carbon faster than its being removed, causes an imbalance and CO2 concentrations to increase  Carbon dioxide increases atmospheres ability to hold heat, also known as greenhouse gases. Human Alteration of the Carbon Cycle.

 plans.theteacherscorner.net/science/experiments/rais ins.php plans.theteacherscorner.net/science/experiments/rais ins.php   r.php?mid=95 r.php?mid=95  s/C/CarbonCycle.html s/C/CarbonCycle.html  Sites

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We’ve put together an experiment that you can do, so you can see carbon dioxide in motion. Experiment