1. Chemicals cycle in ecosystems
By: Paul Kennedy and Stephanie Bradley

2. Chemical cycling

3. 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

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

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

6. 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

7. The Aquatic and Terrestrial carbon cycle

8. 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

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