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River Flash Cards
Chapter 11 Rivers, Ms. Taylor
17
Science
6th Grade
10/27/2009

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Cards

Term
water table
Definition
where aeration and saturation zones meet
Term
run off
Definition
when rain rolls into a stream
Term
channel
Definition
the path that a stream follows
Term
gradiant
Definition
a measure of the change in elevation over a certain distance
Term
percolation
Definition
the downward movement of water through spaces in soil due to gravity
Term
drainage basin
Definition
basin served by a river system
Term
precipitation
Definition
rain; water falling from the sky
Term
evaporation
Definition
how rain gets from the earth back up to the sky
Term
ground water
Definition
water underneath
Term
alluvial fan
Definition
delta on dry land
Term
aquifer
Definition
a rock sandwich with water in the middle
Term
tributaries
Definition
small contributors (like streams) to a big river
Term
condensation
Definition
when water vapor cools in a cloud
Term
sink hole
Definition
underground erosion that causes a circular depression (hole)
Term
artesian
Definition
when cap rock is cracked
Term
erosion
Definition
the wearing down of soil that can level a mountain
Term
porosity
Definition
the amount of space between rock particles (how porous a rock is)
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