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7-3 Water Underground
Chapter 7 Section 3
16
Science
6th Grade
02/05/2009

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Term
preciptiation that soaks into the ground and trickles downward by the pull of ____________
Definition
gravity
Term
a pore is
Definition
space between rock and soil particles
Term
a permeble sustance allows
Definition
water to pass through it (examples are sand and gravel)
Term
impermiable substances
Definition
don't let water pass through them (examples are stone and clay)
Term
the saturated zone is
Definition
the area that is totally filled with water
Term
a water table is
Definition
the top of the saturated zone
Term
the unsaturated zone is
Definition
the layer above the water table
Term
Any underground layer of rock or sediment that holds water is called a
Definition
aquifier
Term
true or false
Aquifiers can provide drinking water, water for crops and they contain moving water, they can be any size.
Definition
true
Term
What raises the water level in a water table - one example
Definition
heavy precipitation, heavy snow
Term
when does the water level in a aquifier decrease (or when does it fall?)
Definition
in dry weather
Term
new water that enters an aquifer from the surface is called _______
Definition
recharge
Term
A well in which water rises because of pressure within an aquifier is called
Definition
a artesain well
Term
label of drawing
top 2 layers are permeable and are the__________ and ___________
Definition
1. unsaturated zone
2. water table
Term
label of drawing of worksheet
top 2 layers are permeable and are the__________ and ___________
Definition
1. unsaturated zone
2. water table
Term
label of drawing of worksheet
bottom layer is impermeable and is the ______________.
Definition
saturated zone
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