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As You Come In…

As You Come In…. Write down your reaction to the following video. Video obtained from: https://www.youtube.com/watch?v=KCYYhEiTuro. About Carbon. Carbon is essential ingredient to life All known life on Earth is carbon-based Organic- made of carbon compounds

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As You Come In…

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

  2. 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

  3. 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

  4. Carbon Cycle: Water and Sky • Carbon in the air: CO2 gas • Dense; stays close to ground/sea level • How it gets into water: Uptake • CO2 absorbed by bodies of water • Colder water- more CO2 can be absorbed • Question: what’s happening to ocean temperatures? Image obtained from: http://precognx.com/wp-content/uploads/2013/11/Ocean-Breath1.jpg

  5. Carbon Cycle: Water and Sky • Carbon in the water: CO2 gas • Trapped in bubbles in water • How it gets into air: Release • CO2 moves up to surface, freed • Warmer water- more CO2 gets released CO2 release CO2 uptake Image obtained from: http://precognx.com/wp-content/uploads/2013/11/Ocean-Breath1.jpg

  6. Carbon Cycle: Earth and Sky • Carbon in the mantle: CO2 gas • How CO2 gets into air: Eruptions • Volcanoes- release lots of CO2 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

  7. Carbon Cycle: Earth’s Breathing Life • Carbon in the air: CO2 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

  8. Carbon Cycle: Earth’s Breathing Life • Carbon in organisms: carbon compounds • How it gets into the air: Respiration, Decomposition • Exhaling releases CO2 gas into atmosphere • Organisms die, decompose; bacteria & fungi release CO2 gas Image obtained from: http://images.nationalgeographic.com/wpf/media-live/photos/000/003/cache/mt-des-voeux_300_600x450.jpg

  9. 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

  10. 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

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

  12. Problems With Carbon Cycle • Ocean temperatures rising • Less CO2 uptake, more CO2 release • Human influence • Consuming fossil fuels • Changes stored carbon compounds into CO2 gas • Deforestation • Less photosynthesis; less CO2 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

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

  14. 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

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