1. Nutrient Cycles Notes

2. Water Cycle Condensation - when tiny droplets of water form clouds
Precipitation - when water is returned to the ground (rain, sleet, snow, hail)
Evaporation - when water changes from liquid form to an atmospheric gas
Biological
Transpiration - when water is released from the leaves of plants into the atmosphere
Root Uptake – when plants absorb water from the ground

4. The Water Cycle The Water Cycle Section 3-3 Condensation Precipitation
Evaporation
Transpiration
Runoff
Seepage
Root
Uptake

5. Nitrogen Cycle Nitrogen Fixation
Bacteria have a symbiotic relationship with plants.
They can take Nitrogen from non-living sources and convert it into usable form for living organisms.
Nitrogen is passed through the food chain
Denitrification
when other bacteria in the soil convert nitrates into nitrogen gas

7. Nitrogen Cycle
N2 in Atmosphere
NO3-
and NO2-
NH3

8. Carbon Cycle Photosynthesis Respiration Decomposition
6CO2 + 6H2O -> C6H12O6 + 6O2
Carbon dioxide required
Releases oxygen
Respiration
C6H12O6 + 6O2 -> 6CO2 + 6H2O
Requires oxygen
releases carbon dioxide
Decomposition

10. CO2 in air
Carbon Cycle
CO2 in ocean