1. CARBON CYCLE
                                                                                                                                   

2. THE CARBON CYCLE
The carbon cycle is just one of several recycling processes, but it may be the most important process since carbon is the basic building block of life.

3. Carbon cycle
The carbon cycle is the process in which carbon atoms are recycled over and over again on Earth. Carbon recycling takes place within Earth's biosphere and between living things (biotic) and the nonliving (abiotic) environment.

4. Since a continual supply of carbon is essential for all living organisms, the carbon cycle is the name given to the different processes that move carbon from one to another. The complete cycle is made up of "sources" that put carbon back into the environment and "sinks" that absorb and store carbon.

5. Ways Carbon is ADDED to our Atmosphere
Sources

6. 2 Ways Carbon is Eliminated from the Atmosphere
Sinks

7. Main Parts of the Carbon Cycle
Photosynthesis
Respiration
Decomposition
Natural weathering of rocks
Burning (combustion) of fossil fuels.

8. Photosynthesis

10. CARBON DIOXIDE + OXYGEN
Respiration
CARBOHYDRATE + OXYGEN
Makes
CARBON DIOXIDE + OXYGEN

11. Respiration
When that plant is eaten, the cells of the animal break down the plant's tissues during digestion. This releases the stored carbon and other nutrients into the animal's system.
As the animal breathes out (exhales), carbon dioxide is released into the air (atmosphere) and the cycle can begin again. This is known as respiration.

12. “The major exchange of carbon between the atmosphere and the lithosphere results from photosynthesis and respiration”

13. CARBON AND RESPIRATION CONTINUED
WHEN ANIMALS RELEASE CARBON DIOXIDE TO THE ATMOSPHERE, THEY DECOMPOSE, DECAY, AND FROM POOLS OF ENERGY CALLED FOSSIL FULES (INCLUDING COAL, OIL, AND NATURAL GASES)

14. Decomposition
MUSSELS, CLAMS AND OYSTERS MAKE SHELLS OF CALCIUM CARBONATE FROM C02
The dead organisms fall to the bottom of the ocean where they collect and become fossilized

15. Decomposition – Oil and Coal
WHEN TREES DIE, THEY FALL INTO SWAMPY MUD, WITH A LACK OF OXYGEN. THEREFORE, NORMAL DECOMPOSITION CANNOT OCCUR

17. Weathering cont.

18. OIL AND COAL TREES BECOME FOSSILISED (COAL IS THEN FORMED)
OIL FORMS FROM TINY DEAD PLANTS TRAPPED AT THE BOTTOM OF THE OCEAN OR MURKY WATER

19. Burning of Fossil Fuels

20. RECAP Photosynthesis – Carbon in carbs made
Respiration – plants eaten, carbs used and converted into carbon dioxide and water.
Decomposition – collected in watersheds, the carbon is in shells and trees which fall to the bottom of the ocean where they compress and become fossilized.

21. Recap cont.
Weathering of Rocks – Shells and trees become fossilized making limestone.
Buring of Fossil Fuels – Humans use fossil fuels (coal and oil) creating massive amounts of carbon dioxide.

23. Example: Tracing Matter
Grandma Johnson
Describe the path of a carbon atom from Grandma Johnson’s remains, to inside the leg muscle of a coyote. *NOTE: The coyote does not dig up and consume any part of Grandma Johnson’s remains.

24. 2. Photosynthesis 3. Food Chain
Grandma Johnson
Decomposers
1. Cellular Respiration
Organic carbon
Carbon dioxide
Plants
Herbivores
Organic carbon
2. Photosynthesis
Coyote
Organic carbon
3. Food Chain

25. The Carbon Cycle

26. The Cycle Keeps Going!

27. What is a connection between a car driving down the road, a tree growing in a forest, and global warming?
CO2
CO2
CO2 27

28. CARBON DIOXIDE CONTRIBUTES
THE GREENHOUSE EFFECT
CARBON DIOXIDE CONTRIBUTES

29. THE GREENHOUSE EFFECT
KEEPS ALL EARHT’S HEAT FROM ESCAPING TO THE OUTER ATMOPSHERE
CARBON RESPONSIBLE FOR GREENHOUSE GASES AND 55% OF THE GREENHOUSE EFFECT
CARBON DIOXIDE IS TRANSPARENT TO LIGHT BUT OPAQUE TO HEAT RAYS, THEREFORE THE ATMOSPHERE RETARDS THE RAIATION OF HEAT FROM THE EARTH BACK INTO SPACE

30. GREENHOUSE EFFECT