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23 & 24 Water Cycle
Mr Durham 9th grade water cycle
21
Science
9th Grade
03/08/2010

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Cards

Term
Hydrosphere
Definition
all of the water on the earth
Term
How much of earth is covered in water
Definition
70 percent
Term
97% of water is
Definition
sea water
Term
3% of water is
Definition
freshwater
Term
-2% of water is
Definition
glaciers with fresh water
Term
-0.6% of water is
Definition
ground water
Term
-0.4% of water is
Definition
lakes, rivers, pond (etc)
Term
hydrologic water cycle
Definition
circular movement of water between the oceans, atmosphere and land surface
Term
Evaporation
Definition

phase change form liquid water to gas water

(caused by radiant energy from sun)

Term
water vapor
Definition

makes up 4% of atmosphere

 

warm areas have more water vapor

cooler areas have less water vapor

Term
Condensation
Definition
phase change form gas to liquid
Term
water vapor spends ______ in atmosphere before condensation happends
Definition
10 days
Term
Precipitation
Definition
when water from the sky fall to land
Term
Water can do 1 of 5 things after falling to the earth
Definition
  1. collect on bodies of water
  2. collect as snow and ice to form glaciers (water can be stored for thousands of years)
  3. runoff
  4. absorption into plants
  5. Inflitration
Term
runoff
Definition
rain or melting snow is driven by force of gravity to collect in streams and rivers finding their way to ocean
Term
Absorption
Definition
plants take water in through there roots
Term
evapotranspiration
Definition
water enters plant through roots and evaporates through leaves
Term
Infiltration
Definition
movement of water into soil
Term
groundwater
Definition
water that infiltrates the ground, greater in volume then all lakes and rivers
Term
Infiltration factors
Definition

pore size, amount of water

 

smaller pore size, slower infiltration

more water contained in pore spaces, slower ifiltration

Term
2 forces that drive water cycle
Definition
suns energy and  gravity
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