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Cycles of Matter.

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Presentation on theme: "Cycles of Matter."— Presentation transcript:

1 Cycles of Matter

2 Cycles of Matter Water Cycle Oxygen Cycle Carbon Cycle Nitrogen Cycle
Phosphorus Cycle

3 Energy flows one way Matter is recycled within and between ecosystems

4 Biogeochemical Cycles
Biological systems do not use up matter They transform it Nutrients: all the chemical substances required to live are recycled through biogeochemical cycles

5 Water Cycle All living things need water

6 Evaporation: liquid atmospheric gas

7 Transpiration: “evaporation” of water from plant leaves

8 Condensation: water vapor in the air is changed to “liquid” water (cloud formation)

9 Precipitation: water released from clouds (rain, sleet, hail, snow)

10 Oxygen Cycle

11 Oxygen Cycle

12 Oxygen Cycle

13 Carbon Cycle

14 Carbon Cycle Biological Processes
Photosynthesis

15 Carbon Cycle Biological Processes
Animal Respiration

16 Carbon Cycle Biological Processes
Decomposition of Plants & Animals

17 Carbon Cycle Geochemical Processes
Release of CO2 gas by volcanoes

18 Carbon Cycle Mixed Biogeochemical
Fossil fuels (burial of Carbon rich remains & their conversion to coal & petroleum)

19 Carbon Cycle Human Activity
Burning Fossil Fuels Deforestation

20 Carbon Cycle

21 Nitrogen Cycle Nitrogen is needed to make amino acids
N2 = 78% of earth’s atmosphere

22 Nitrogen Cycle

23 Nitrogen Cycle Nitrogen Fixation
Converts N2  NH3 (ammonia) (certain bacteria do this) Other bacteria (in soil or legume roots) convert NH3 (ammonia) into NO (nitrate ions) or NO2 – (nitrite ions)

24 Nitrogen Cycle Nitrogen is found in waste produced by many living things

25 Nitrogen Cycle Also found in dead/decaying matter

26 Nitrogen Cycle Found in fresh and salt water

27 Nitrogen Cycle Used in plant fertilizers

28 Nitrogen Cycle Decomposers break down decaying matter into ammonia (can be taken up by producers) Other soil bacteria convert nitrates into N2 gas in process called “denitrification”

29 Nitrogen Cycle

30 Phosphorus Cycle Phosphorus: important part of DNA/RNA
Uncommon in the biosphere

31 Phosphorus Cycle Found mostly in rock, soil, ocean sediments

32 Phosphorus Cycle Phosphorus does not enter atmosphere

33 Phosphorus Cycle Phosphorus does not enter atmosphere

34 Phosphorus Cycle

35 Cycles of Matter Water Cycle Oxygen Cycle Carbon Cycle Nitrogen Cycle
Phosphorus Cycle


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