Download Nitrogen and Water Cycle Notes File

• Through the Nitrogen Cycle
• Describes the transformation of the chemical nitrogen as it
moves through the air, the ecosystem, and underground.
• When bacteria take nitrogen from the air and
change it into a form usable by plants.
• 1) Bacteria (usually living underground on the roots of plants)
• 2) Take nitrogen from the air and changes its chemical form
• N2 Gas into Ammonia NH3 which plants can use
• In this stage the ammonia NH3 is changed into Nitrite
• After all living organisms have used nitrogen, another type of
bacteria and some times fungi known as decomposers coverts
nitrogen rich waste from plants and animals into a simplified
form of Nitrogen
• The final step where bacteria make the Nitrogen back into it’s
original form the N2 gas
• Fixed Nitrogen is returned to the ground when plants and
animals die and are broken down by decomposers, and the
cycle repeats itself.
• Precipitation: Water falling from the atmosphere to the ground
(rain, snow, hail, sleet).
• Evaporation: Water moves from the ground into the
atmosphere, changing from liquid to a gas (water vapor)
• Condensation: Water Vapor joins the clouds and depending on
the temperature will either turn to rain, snow, sleet, or hail.