Transcript Ground Water

Aquifer
a body of rock or
sediment that stores
water underground and
allows the flow of
groundwater
Porosity
the percentage of a rock or sediment
that consists of open spaces
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Permeability
the ability of a rock or sediment to let fluids
pass through its open spaces, or pores
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Water Table
The upper surface
of underground
water; the upper
boundary of the
zone of saturation.
Aeration:
The process by which atmospheric air enters the soil.
The rate and amount of aeration depends on the size and
continuity of the pore spaces and the degree of water logging.
Saturation / saCHəˈrāSHən
The percentage of how much something is
absorbed compared with the maximum possible.
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Conserving Groundwater
Communities often regulate the use of
groundwater to help conserve this valuable
resource. They can monitor the level of the local
water table and discourage excess pumping.
Some communities
recycle used water. This
water is purified and may
be used to replenish the
groundwater supply.
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On the other hand…
Some of natures most amazing formations are
underground.
Over thousands of years, areas with limestone
rocks can develop caves. Groundwater dissolves
a network of tunnels in the rock. If the water
table is lowered by a change in climate or
tectonic uplift of the area, groundwater drains
out of the tunnels, leaving the caverns empty.
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