Download Chemical Cycles

Chemical Cycles
WATER, CARBON, NITROGEN, &
PHOSPHOROUS
Water Cycle
1. Sun
2. Clouds/Condensation
3. Evaporation
4. Precipitation
5. Ocean
6. Where can we draw
transpiration?
1.
Transpiration is the
evaporation of water
from plants
Carbon Cycle
 Two Major Processes:

Cellular Respiration:


O2 + Glucose CO2 + H2O
Photosynthesis:

CO2 + H2O Glucose + O2
Nitrogen Cycle
 Nitrogen is a major
component in protein
and DNA
• Found in water as
-ammonia (excreted by
aquatic animals)
-nitrites (formed by
bacteria)
-nitrates (formed by
bacteria)
Phosphorus Cycle
 Phosphorous is a major
component in DNA and
ATP
 Initially comes from
weathered rock