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Water Cycle and Watersheds
words for the water cycle and watersheds
19
Science
6th Grade
11/30/2010

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Cards

Term

water cycle

(hydrologic cycle)

Definition
the continuous movement of Earth's water through the ocean, atmosphere, and land
Term
What powers the water cycle?
Definition
The sun's energy
Term
evaporation
Definition
process (or phase change) by which liquid water changes to water vapor
Term
transpiration
Definition
process by which water vapor evaporates from the leaves of plants
Term
condensation
Definition
  • process by which water vapor changes to liquid form
  • also where clouds are made
Term
run off
Definition

process by which water flows over the surface of the ground

(eventually ending up in the ocean)

Term
precipitation
Definition

process by which water falls from the atmosphere to the Earth's surface

  • rain
  • sleet
  • hail
  • snow

 

Term
cloud formation
Definition

the process of water molecules cooling and condensing

clouds are made of water droplets

Term

infiltration

(percolation)

Definition
  • when run off seeps into the ground
  • the ground must contain permeable rock
Term
water table
Definition
the boundry between the zone of aeration and the zone of saturation
Term
zone of aeration
Definition
surface water seeps into the soil and rock below the earth, the zone of aeration is where water passes through the soil and rock
Term
zone of saturation
Definition
surface water seeps underground and passes through the zone of aeration and collects  in the zone of saturation
Term
permeability
Definition

rock's ability to let water pass through it

 

OPPOSITE is impermeability (no water passes through)

Term
watershed
Definition
  • the land that is drained by runoff (water system)
  • also called a "drainage basin"
  • Clinton River watershed is near Lake Orion
  • Mississippi Watershed is the largest
Term
tributary
Definition
a stream that flows into a lake or larger river
Term
ground water
Definition
water found below the Earth's surface
Term
aquifer
Definition
  • a rock layer that stores groundwater and allows for the movement of water
  • underground "storage tank"
Term
accumulation
Definition
water collects or joins together in an area such as streams, rivers, aquifers, oceans etc
Term
saturation
Definition

when clouds become so dense with water droplets that they have to release them

(think of a sponge full of water)

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