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The water cycle

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Broooke Rhodes

on 15 November 2013

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Transcript of The water cycle

Evaporation is the process of water becoming water vapor
Condensation is the process in which water changes from a gas state to a liquid state.
The sun plays a key role in condensation. It takes the water from oceans, rivers, and lakes
The molecules in condensation come together in cloud form. The molecules start to slow down but they are still moving freely.
What are clouds? Clouds are large, visible clumps of water vapor.
There are many different types of clouds:
Cirrus- thin, high, wispy clouds.
Stratus- low, layered, thick clouds.

The water cycle
What is transpiration?
Precipitation is when cloud particles become too heavy to remain suspended in the air, so gravity makes them fall in the form of hail, rain, freezing rain, sleet or snow.
Transpiration is the process in which water inside a plant is converted in to vapor and is released in to the atmosphere.
What is the suns role in this process?
The role the sun plays in evaporation is when the sun starts to heat up the water then evaporates in to water vapor
Important things about Groundwater
Groundwater makes up about 1% of the water on Earth.
But, groundwater make up about 35 times the amount of water in lakes and streams.
Groundwater occurs everywhere beneath the Earth's surface, but is usually restricted to depths less than about 750 meters.
The volume of groundwater is equivalent to a 55 meter thick layer spread out over the entire surface of the Earth
The sun plays a role in transpiration. When the water inside a plant is heated by the sun it turns into vapor. The vapor then passes through tiny pores in the plant, mostly located on the underside of the plants leaves. And then enters the atmosphere.
When rain falls the molecules are still pretty close together but not touching each other. They are moving in all directions and spaced out.
Surface runoff is the downhill movement of water towards a bigger body of water.
Channel runoff, or stream flow, is the flow of water in rivers, streams, etc.
Most often, runoff leads to the ocean.
As groundwater in the lakes, streams, rivers and oceans warms from the
sun's energy

When hail and snow fall the molecules are compact and tight together because they are all a solid. Since the molecules can not move they simply vibrate.

Water flow
Stream / River
Since freezing rain and sleet are both a solid and a liquid, they both have molecules of a solid and liquid. Half of the molecules move freely but the other half are compact and tight together.

Groundwater is the water that forms surface water bodies, like lakes or streams, that soak into the soil and bedrock.
When rain lands on sloped land, it begins to roll down the land towards a bigger river, lake, or ocean. This is known as runoff.
The water that ends up where there is no body of water around, will seep in the ground and become groundwater.
How do the molecules move?
Along the way, some water molecules will get heated and evaporate back into the air, by the
sun's energy
Water in the aquifer moves very slowly. Movement is caused by both gravity and pressure differences. Groundwater can move against the gravity by moving from areas of high pressure to low pressure. The rate of groundwater flow is determined by porosity and permeability.
Molecules are always in motion. Whether they are in fixed positions and vibrating as they would be in a solid. Or spread out and moving freely like the molecules in a liquid. When transpiration occurs the molecules start as they would in a liquid and then spread out into a gas. The water inside the tree starts as a liquid and then turns into a gas in the form of water vapor, and then enters the atmosphere.

Evaporation is the process by which water is converted from its liquid form to its vapor form and transferred from land and water masses to the atmosphere. Evaporation from the oceans accounts for 80% of the water delivered as precipitation.
Evaporation is one of the two forms of vaporization
"Groundwater Definitions." - NYS Dept. of Environmental Conservation. New York State Department of Environmental Conservation, 2013. Web. 13 Nov. 2013
"National Ground Water Association." Groundwater Facts. National Ground Water Association, Apr. 2010. Web. 13 Nov. 2013.
"The Hydrologic Cycle." Wellownerorg. N.p., n.d. Web. 13 Nov. 2013
"Water." Government of Canada, Environment Canada. Canada, 2013. Web. 12 Nov. 2013.
Maddox, Cynthia. "Life On The Ledge ©." : Messages From Water. N.p., 27 Oct. 2013. Web. 13 Nov. 2013
After evaporation water then goes to condensation just like transpiration
molecule movement
Much like evaporation, the next process in the water cycle after transpiration is condensation
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