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The Water Cycle

Lexi, Alison, and Ben
by

Lexi Wallace

on 27 September 2012

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Transcript of The Water Cycle

the runoff produced
by melting snow. Precipitation Precipitation occurs mostly as rain but also as snow, fog, and graupel.
Precipitation occurs when a portion of the atmosphere becomes saturated with water vapor.
The air can become saturated in two ways adding water vapor to the air and cooling of the air. Water forming into gas from the liquid phase. Mostly occurs due to solar energy heating up the water. Release of water from plants and soil into the air. Process of water
vapor turning into
droplets in the air forming
clouds and fog. Water Vapor Condensed
usually in the air.
Most precipitation
occurs as rain. Condensation some of the freshwater returning to earth's surface as precipitation is converted into ice stored in glaciers
The snow melts and supplies rivers, oceans, lakes, and streams Condensation is the change of the physical state of matter from gaseous phase into liquid phase
Condensation is a crucial component of distillation, an important laboratory and industrial chemistry application. Evaporation is a type of vaporization that only occurs on the surface of a liquid.
The other type is boiling which happens throughout the entire mass of the liquid.
Evaporation can occur in any body of water. Transpiration is the same as evaporation except water is vaporizing from plants instead of from the surface of the water.
Transpiration occurs through the stomata of a plant.
Plants can control how much transpiration occurs.
Stomata release water into the air based on the humidity or temperature of the environment surrounding it. Surface Runoff the water flow that occurs when the soil is infiltrated to full capacity and excess water from rain, melt water, or other sources flows over the land.
primary agent in water erosion Transpiration The water cycle for the most part is abiotic.
The things that help water change phases such as air, soil, and solar energy are all abiotic.
The only part of the water cycle that is biotic is transpiration because water is being removed from plants which are living.
Urbanization
Construction of Dams
Industry
Agriculture
Deforestation
Removal of water from underground water wells Abiotic or Biotic? Human activities that alter the water cycle Evaporation Snow Melt Runoff it is the loss of water vapor from parts
of plants (similar to sweating), especially in
leaves but also in stems,flowers and roots. Importance of The Water Cycle Its how water recycles itself
It helps water reach plants and animals
It moves nutrients and sediment all over the world
The weather would be much different such as no snow or rainfall.
Life would cease to exist on Earth
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