the water cycle
TRANSCRIPT
The Water Cycle
http://ga.water.usgs.gov/edu/graphics/watercyclesummary.jpg
What is the Water Cycle?
Controls the distribution of Earth’s water
Circulates through four spheres of Earth
Has no starting point
Earth’s water is always in movement
Water is always changing states
Parts of the Water Cycle
Evaporation Transpiration Condensation Cloud Formation Precipitation
Infiltration Surface Runoff Groundwater Absorption
Evaporation
Change from liquid to gas (vapor)
Includes vaporization from: Water surfaces Land surfaces Snow fields
Not vaporization from leaf surfaces
http://www.kidzone.ws/water/
Team Time
Draw the process of evaporation.
Transpiration
Water absorbed by plants is evaporated
Water is absorbed through roots
Evaporated from the plant surface (leaves)
http://ga.water.usgs.gov/edu/pictures/wctranspirationleafsoil.jpg
Condensation
Change from gas to liquid
Opposite of evaporation
Example of condensation: Cold glass, hot day
http://farm1.static.flickr.com/215/521585824_54ed44d010_m.jpg
Team Time
Draw the process of condensation.
Cloud Formation
Water vapor joining with dust particles
All clouds contain water vapors
Rarely see clouds in the desert http://ga.water.usgs.gov/edu/pictures/
wcclouds.jpg
Precipitation
Any water falling to Earth’s surface
Examples: Rain Snow Sleet Hail Dew Frost
http://farm5.static.flickr.com/4079/4872194918_3a1de0ba90_m.jpg
Team Time
Draw the process of precipitation.
Infiltration
Ground water soaking into the soil
From the soil: Soaked up by roots Becomes ground water
http://ga.water.usgs.gov/edu/pictures/wcinfiltration.jpg
Surface Runoff
Precipitation runoff over the landscape
Occurs when: Water falling on
ground > infiltration rate
http://ga.water.usgs.gov/edu/pictures/wcrunoff.jpg
Groundwater
Water located below the ground’s surface
Consider this: Digging in sand close
to ocean Water that appears is
groundwater http://ga.water.usgs.gov/edu/pictures/wcgwstoragebeachlores.jpg
Absorption
Roots removing water from soil
Example: Sponge and water
http://farm4.static.flickr.com/3542/3282843423_5ed72e45ac_m.jpg
Team Time
Label the following:
Evaporation Transpiration Condensation Cloud Formation Precipitation Infiltration Surface Runoff Groundwater Absorption
http://ga.water.usgs.gov/edu/graphics/watercycleprintnotext.jpg
Evaporation
Transpiration
Condensation
Cloud Formation
Precipitation
Infiltration
Surface Runoff
Groundwater
Absorption