Chemicals cycle in ecosystems

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Presentation transcript:

Chemicals cycle in ecosystems By: Paul Kennedy and Stephanie Bradley

Chemical cycling

The 4 main cycles they are: oxygen cycle Carbon cycle Nitrogen cycle water cycle Each cycle a certain element Each essential to balance elements on earth

Photosynthesis/Oxygen cycle Oxygen is cycled through plants/trees 6CO2 + 6H2O + ENERGY > C6H12O6 + 6O2 Plants take carbon dioxide from air give back oxygen

Respiration/Oxygen cycle Takes oxygen from air or water Animals/plants take oxygen from air They give back carbon dioxide

The Carbon cycle There are two types of the carbon cycle The Aquatic carbon cycle And the terrestial carbon cycle carbon is used by producers, consumers, and decomposers Cycles rapidly through air, water, and biota Biota is all plant/animal life in one area

The Aquatic and Terrestrial carbon cycle

The Nitrogen cycle It moves between the atmoshpere, biosphere, and geosphere There are 5 processes in this cycle They are - Nitrogen fixation Nitrogen uptake (organismal growth) nitrogen decay nitrification denitrification

Water cycle The main processes for it are - evaporation condensation precipitation collection

http://www.lenntech.com/carbon-cycle.htm http://4.bp.blogspot.com/_u39xQ3E5iiI/SCab0M13RUI/AAAAAAAAAZk/aThZOut3WMI/s320/energyflow.gif http://www.kidzone.ws/water/ http://www.kidsgeo.com/images/nitrogen-cycle.gif http://www.cotf.edu/ete/images/modules/msese/earthsysflr/EFCycleP3.gif http://www.visionlearning.com/library/module_viewer.php?mid=98