Phosphorus & Water Cycle

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Phosphorus Water Cycle

• Hanna, Maddie, Daniel, Gage, and Kevin

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Phosphorus
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Phosphorus Cycle

• Found in the bottom of the ocean.
• It is mined to be used as fertilizer and
  detergents.
• Phosphorus also goes into the rocks and is
  brought up by weathering. Then it is dissolved in
  soil water, lakes, and rivers.

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Phosphorus Cycle continued

• The phosphorus in the fertilizer gets into land
  food webs, and it cycles through the food webs
  and water systems.
• There is leeching and run off to the ocean where
  it is dissolved and cycles through the marine
  food webs.

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Organic and Inorganic Reservoirs of Phosphorus

• Phosphate is found in soil, plants and in
  microbes in a number of organic and inorganic
  compounds.
• It is believed that all original phosphates came
  from weathering of rocks.
• The chief source of organic phosphorus compounds
  entering the soil is the vast quantity of
  vegetation that undergoes decay.

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Phosphorus in Chemical Reactions

• Phosphate groups activate and deactivate enzymes
  within cells that catalyze major chemical
  reactions.

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Impact of human intervention on the Phosphorus
Cycle

• Humans introduce phosphorus through a number of
  sources human wastes, animal wastes, industrial
  wastes, and human disturbance of the land and its
  vegetation.
• When this additional phosphorus enters the
  system, plants respond by excessive plant growth.

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Water Cycle
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Water Cycle

• Found all over the world.
• Life would not be possible without water.
• Earth has a limited amount of water so it has to
  cycle it.

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Water Cycle continued

• The water has to be evaporated into the
  atmosphere.
• In the atmosphere it condenses into clouds.
• From the clouds the water will fall as
  precipitation such as rain, snow, hail, and
  sleet.
• After the water falls back to earth, it will run
  off mountain and other land features to collect
  in lakes, streams, and the oceans.

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How we Affect the Water Cycle

• We interfere with the water cycle by taking away
  huge amounts of freshwater and depleting other
  water supplies. 
• By clearing vegetation from land to build roads,
  parking lots, etc., water cannot seep into the
  ground to be stored in the aquifer.
• The water remains on the surface and increases
  the likelihood of flash floods and surface
  run-off. 
• This can cause soil run-off and damages
  buildings.

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Reservoirs of Water

• Organic Animals, plants, etc.
• Inorganic lakes, glaciers, oceans, aquifers,
  etc.

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The End

• We hope you enjoyed learning about the Phosphorus
  and Water Cycle.