Carbon and the Carbon Cycle - need.org

Carbon and the Carbon Cycle - need.org

Carbon and the Carbon Cycle Greenhouse Gases and the Atmosphere Certain gases in the atmosphere are good at absorbing and trapping heat. We refer to these as greenhouse gases (GHG). These gases, make up a small segment of our atmosphere (1%) but have a big impact. Carbon dioxide (CO2)

Water vapor (H2O) Methane (CH4) Nitrous oxide (N2O) F-gases (HCFCs, PFCs, and SF6) Water Vapor is the most important GHG accounting for 2/3 of all heat trapped by greenhouse gases. But, its levels have remained relatively stable over the years. The Carbon Cycle 2018 The NEED Project Carbon Dioxide Carbon Dioxide makes up a very small part of the atmosphere, less than 1%. Human activity has caused measurable changes in the levels of CO2 in the atmosphere.

The majority of scientists agree that even small changes have been enough to tip the climate balance. So lets explore carbon The Carbon Cycle 2018 The NEED Project Carbon Carbon is an abundant element not only on Earth, but also in the sun, stars, comets, and in the atmospheres of other planets.

With four electrons in the outmost energy level, carbon easily bonds with other elements. In fact, there are close to 10 million carbon compounds! Carbon is a key element in many greenhouse gases such as CO2, methane, and carbon monoxide. The Carbon Cycle 2018 The NEED Project

The Greenhouse Effect Graphic courtesy of IPCC The Carbon Cycle 2018 The NEED Project Carbon Cycle Carbon cycles between reservoirs or sinks in the Carbon Cycle. The lithosphere stores the most carbon, some of which is found

in fossil fuels. The hydrosphere is the second largest reservoir, followed by the atmosphere, and then the biosphere. The Carbon Cycle 2018 The NEED Project The Lithosphere Largest carbon reservoir Carbon is found primarily in rocks and minerals Carbon is also found in the form of fossil fuels: petroleum, natural gas, and coal

Prior to the Industrial Revolution carbon left the lithosphere slowly through weathering and volcanism (natural processes) The Carbon Cycle 2018 The NEED Project The Hydrosphere Second largest reservoir of carbon Most of the carbon in this reservoir is found in the worlds oceans, but also in fresh water sources A subsystem of this reservoir

includes marine plants and animals The Carbon Cycle 2018 The NEED Project The Atmosphere A smaller amount of carbon is stored in the atmosphere The only reservoir that exchanges significant amounts of carbon directly with all of the others

The Carbon Cycle 2018 The NEED Project The Biosphere One of the smallest reservoirs Includes all things that are living, were alive a short time ago, or are derived from living organisms

Carbon in this reservoir is found mainly in the form of carbohydrates and proteins in both living and decaying organisms The Carbon Cycle 2018 The NEED Project Game Play Become a carbon atom and see the places you can go!

Each person will be assigned to a reservoir to start. Fill out the top of your Carbon Tracking Sheet: Record the round as pre-industrial revolution or present day based upon teacher instructions. Record your starting location and read the poster to find out what type of molecule you are and in what item you are found. Record how many atoms are present in your reservoir. The Carbon Cycle 2018 The NEED Project Game Play Become a carbon atom and see the places you can go! When all at your poster are ready, each atom will draw a

card from the stack: 1. Look at the Reservoir Instruction Sheet on the wall and compare cards. Determine who goes and who stays. 2. Before moving, record WHERE you are going or if you are staying on your Carbon Tracking Sheet. When directed, go to your new reservoir or stay put. The Carbon Cycle 2018 The NEED Project Game Play Some will travel. Some will never move! Again, fill out the top of your Carbon Tracking Sheet: 1. Read the poster to find out what type of molecule you are, in what item you are found, and the process by which you arrived.

2. Record how many atoms are present in your reservoir. When all at your poster are ready, each atom will draw a card from the stack: 1. Look at the Reservoir Instruction Sheet on the wall and compare cards. Determine who goes and who stays. 2. Before moving, record where you will go, or if you will stay. 3. Wait for instructions to move. 4. Repeat for up to 10 rounds. The Carbon Cycle 2018 The NEED Project For More Information The NEED Project www.need.org [email protected]

1-800-875-5029 Energy Information Administration U.S. Department of Energy www.eia.gov The Carbon Cycle 2018 The NEED Project NEED IS SOCIAL! Stay up-to-date with NEED. Like us on Facebook! Search for The NEED Project, and check out all weve got going on! Follow us on Twitter. We share the latest energy news from around the country, @NEED_Project. Follow us on Instagram and check out the photos taken at

NEED events, instagram.com/theneedproject. Follow us on Pinterest and pin ideas to use in your classroom, Pinterest.com/NeedProject. The Carbon Cycle 2018 The NEED Project

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