The Carbon Cycle

WHAT DO THESE THINGS HAVE IN COMMON?

1Start with a comparison graphite and diamonds. Both made of the same element carbon, both with vastly different structure and function.Pencil:http://images2.wikia.nocookie.net/__cb20100606142857/uncyclopedia/images/b/bb/RP-pencil-tip.jpgDiamond:http://pics1.whiteflash.com/articlefiles/311-newdiamond.jpg

Highlights carbon on the periodic table2Its an elementIts an elementCARBON QUICK FACTS

3Why a penguin? I have no idea. Penguin was drawn by myself (Lucas Talley)Sound effect is courtesy of one of my past students.Its an elementCARBON QUICK FACTSIt is a part of ANYTHING alive or once alive

4Its an elementCARBON QUICK FACTSIt is a part of ANYTHING alive or once aliveLiving things use carbon for energy and structure

5I give a little disclaimer about how it is not the carbon itself that is giving the energy and structure, but rather the bonds which they will learn more about in chemistry.The Carbon Cycle

ATMOSPHEREPLANTSTHE JOURNEY OF CARBONI emphasize that a cycle can start wherever you like, so long as it ends back where you begin. Lets start in the atmosphere.7FROM ATMOSPHERE TO PLANTS+CO2+=Sugar+Oxygen

ATMOSPHEREPLANTS The carbon in CO2 becomes sugarCarbon is usually found as CO2 in the atmosphere Plants take carbon in through photosynthesisPretty straightforwardThe water drop with glasses is from another PowerPoint of mine8

CARBO

PLANT CELLSSUGARS (starch)HYDRATESNGetting the carbon carbohydrates link in their heads. 9CARB

SOHYDRATES

Worlds largest POTATOSCARB

ON

Worlds largest POTATO

CARBONSTORESENERGYDrilling home the fact that we get energy as we break carbon bonds12

ATMOSPHEREPLANTSANIMALSTHE JOURNEY OF CARBON13FROM PLANTS TO ANIMALS Animals eat plants (yum)

ANIMALSPLANTS Or animals eat animals which ate plants (double yum)Either way the carbon is traced back to plants

14A bit of silliness conveying the most familiar step of the short cycle of the carbon cycleDinosaur and penguin both drawn by me (Mr. Talley)

ATMOSPHEREPLANTSANIMALSTHE JOURNEY OF CARBONFROM ANIMALS TO THE ATMOSPHERE Respiration Oxygen in, CO2 out

ANIMALS

ATMOSPHERE+CO2+=Sugar+OxygenTHE BIOCHEMICAL FORMULA (A HIGH SCHOOL CHEMISTRY THING)ENERGY Respiration WHAT YOU NEED TO REMEMBERPlants perform respiration too!(but its not common)A brief overview of respiration without diving too deep16

ATMOSPHEREPLANTSANIMALSSHORT CYCLE RECAPPhotosynthesisConsumptionRespirationShort CycleRecap17How do animals put carbon back into the atmosphere?18Short Cycle quiz timeWhat form is carbon in when it goes from animal to atmosphere?19Name two ways that animals get their carbon20How do plants get their carbon?21What is the most common form of carbon when in the atmosphere?What form does carbon take once in the plant?I usually teach the carbon cycle over two class periods. This is where I end the first class period.23

24Moving in to the long cycle a picture of coalhttp://netrightdaily.com/wp-content/uploads/2010/09/Coal.jpg

25Oilhttp://www.sciencephoto.com/image/339804/530wm/T1100503-Crude_oil-SPL.jpg

ATMOSPHEREPLANTSANIMALSFORMATION OFFOSSIL FUELSTHE JOURNEY OF CARBON

xx dead xxxx dead xx

26The next stepsFossil fuels form fromDead plants and animalsIn order for fossil fuels to form you need the right amount of three things: Pressure Temperature Time (millions of years)

PLANTS & ANIMALSFORMATION OF FOSSIL FUELS

xx dead xxFROM DEAD STUFF TO FOSSIL FUELSGo over some of the details about how these things form. Plants are the primary source of fossil fuels.27

ATMOSPHEREPLANTSANIMALSBURNING FOSSIL FUELSTHE JOURNEY OF CARBONFORMATION OFFOSSIL FUELSxx dead xxFROM FOSSIL FUELS TO THE ATMOSPHERE Burning fossil fuels releases carbon in the form of CO2

ATMOSPHERE

BURNING FOSSIL FUELS

Co2 imagehttp://www.sierraclubgreenhome.com/cms/wp-content/uploads/2008/09/co2emissions.jpg I dont get in to greenhouse gases or global warming quite yet29WHAT HAPPENS TO CARBON IN THE OCEAN? Ocean producers use CO2 for photosynthesis The cycle is pretty much the same from there

ATMOSPHEREOCEAN

30Point out the double arrows, ocean can exchange with atmosphere and vice versa

31Discuss how ocean critters use the carbon to build shells, etc.Chalk cliffs of Moenhttp://upload.wikimedia.org/wikipedia/commons/7/76/Chalk_cliffs_of_Moen.jpg

ATMOSPHEREPLANTSANIMALSFORMATION OFFOSSIL FUELSBURNING FOSSIL FUELSLONG CYCLE RECAPxx dead xxxx dead xxLong CycleLong cycle recap32What happens to the carbon in our bodies when we die?Long Cycle Quiz33What three things do you need the right amount of in order to get fossil fuels? How long does it take fossil fuels to form? What happens when fossil fuels are burned? Where does most of the CO2 produced from burning fossil fuels end up? What is the carbon cycle like in the ocean? 38HOW DO HUMANS AFFECT THE CARBON CYCLE ?

Picture of a greenhousehttp://yosemitefoothills.com/Garden/1280x960/GreenhouseInside2b.jpg39

Atmosphere (not to scale)GREENHOUSE EFFECT2. It can be reflected back into space1. It can get absorbedREJECTED3. It can be trapped by the atmosphereSunhttp://images.wikia.com/orna/images/f/f0/Sun.gif Earth expertly drawn by yours truly40

Another example they have all experienced source listed on the picture41

GREENHOUSE GASES:Gases in the atmosphere that trap heatEarth would freeze without them

Atmosphere (not to scale)GREENHOUSE EFFECTThe overall warming effect caused by the greenhouse gases trapping heatGLOBAL WARMING The DebateFACT There is 30% more CO2 in the air now than there was 150 years ago

I do a class debate about global warming for my classes, that is why I present this as fact / theory. At the end of the debate I share my views about global warming being at least partially anthropogenicThermometer source unknown44

Graph source, unknown45GLOBAL WARMING The DebateFACT There is 30% more CO2 in the air now than there was 150 years ago

THEORY More CO2 traps more heat and causes higher temperatures worldwide

ConsequencesRising temperaturesSpecies extinction caused by the inability to adaptSea levels risingSevere weather conditions

Image sources: unknown47ThereisstrongevidencethattheEarthis heating up. 48ThedebateisaboutwhoweshouldblameTeam 1BlameMotherNatureThis is where I introduce my class debate. If you do things differently then feel free to delete these pagesI play a clip from the song Naturally by Selena Gomez here.A force of nature your energy it comes naturally (oh yes it does) it comes naturally50and all other peopleTeam 2Blameyou and meLet the debate begin!Bring it on!CRUSH YOU!willI51I play a clip from the song You and Me by Lifehouse.Cause its you, and me, and all other peopleI then play a clip from the final countdown to pump up the debate