2. As You Come In… Write down your reaction to the following video. Video obtained from: https://www.youtube.com/watch?v=KCYYhEiTuro

3. About Carbon Carbon is essential ingredient to life All known life on Earth is carbon-based Organic- made of carbon compounds Carbon moves among Earth’s 4 “spheres” Atmosphere (sphere of air)- near the ground Hydrosphere (sphere of water)- oceans, lakes, seas Lithosphere (sphere of rock)- crust, mantle Biosphere (sphere of life)- all living things Process of movement: Carbon Cycle Photo courtesy of T. Gray, 2004

4. The Carbon Cycle Carbon Cycle- circulation of carbon atoms through various processes Carbon circulates between Water and air Air and ground Air and living things Living things and ground Image obtained from: http://globecarboncycle.unh.edu/graphics/CCdiagramWEB.jpg

5. Carbon Cycle: Water and Sky Carbon in the air: CO 2 gas Dense; stays close to ground/sea level How it gets into water: Uptake CO 2 absorbed by bodies of water Colder water- more CO 2 can be absorbed Question: what’s happening to ocean temperatures? Image obtained from: http://precognx.com/wp-content/uploads/2013/11/Ocean-Breath1.jpg

6. Carbon Cycle: Water and Sky Carbon in the water: CO 2 gas Trapped in bubbles in water How it gets into air: Release CO 2 moves up to surface, freed Warmer water- more CO 2 gets released Image obtained from: http://precognx.com/wp-content/uploads/2013/11/Ocean-Breath1.jpg CO 2 uptake CO 2 release

7. Carbon Cycle: Earth and Sky Carbon in the mantle: CO 2 gas How CO 2 gets into air: Eruptions Volcanoes- release lots of CO 2 into atmosphere Image obtained from: http://static2.egu.eu/media/filer_public_thumbnails/filer_public/2012/07/14/karymsky-3c438e544cb046916800fcbd69724d0f.jpg__1280x99999_q85_subject_location-1568,1061_subsampling-2.jpg

8. Carbon Cycle: Earth’s Breathing Life Carbon in the air: CO 2 gas How it gets into organisms: Photosynthesis Plants store carbon as sugars Food web: consumers eat producers, those consumers get eaten, etc. Organisms use sugars to form carbon compounds Image obtained from: http://images.nationalgeographic.com/wpf/media-live/photos/000/003/cache/mt-des-voeux_300_600x450.jpg

9. Carbon Cycle: Earth’s Breathing Life Carbon in organisms: carbon compounds How it gets into the air: Respiration, Decomposition Exhaling releases CO 2 gas into atmosphere Organisms die, decompose; bacteria & fungi release CO 2 gas Image obtained from: http://images.nationalgeographic.com/wpf/media-live/photos/000/003/cache/mt-des-voeux_300_600x450.jpg

10. Carbon Cycle: Fossil Fuels Carbon in organisms: carbon compounds How it gets into the ground: Fossilization Formed from dead organisms Very particular conditions for dying Cannot be exposed to air Submerged and/or buried shortly after death Buried matter compacted by weight of soil above it High temperature, pressure forms fossil fuels Image obtained from: http://www.wired.com/images_blogs/wiredscience/2010/01/coal_f.jpg

11. Carbon Cycle: Fossil Fuels Fossil Fuels Coal Oil Natural gas Take millions of years to form Older fuel- more carbon stored per unit of volume Image obtained from: http://www.wired.com/images_blogs/wiredscience/2010/01/coal_f.jpg

12. Carbon Cycle: Fossil Fuels Image obtained from: http://www.globalization101.org/uploads/Image/Energy/Picture-coal-formation.jpg

13. Problems With Carbon Cycle Ocean temperatures rising Less CO 2 uptake, more CO 2 release Human influence Consuming fossil fuels Changes stored carbon compounds into CO 2 gas Deforestation Less photosynthesis; less CO 2 removed from atmosphere Less organisms to be fossilized Image obtained from: http://1.bp.blogspot.com/_cwrSE63jF7Y/TGrnq9FhTnI/AAAAAAAAA5I/dOshgl6RNDY/s1600/coal_fired_power_plant.jpg

14. Recap of Carbon Cycle Video obtained from: https://www.youtube.com/watch?v=vrDekmRbBVk

15. Today’s Assignment Construct a diagram of the Carbon Cycle Include all natural processes covered in class as part of your cycle Also include burning of fossil fuels in your Carbon Cycle diagram Image obtained from: http://www.meritnation.com/img/shared/discuss_editlive/1084373/2012_02_09_15_07_29/image3353714566910658742_8813695257420311632.jpg