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Define: Infiltration
The process by which precipitation that has fallen on land trickles into the ground and becomes ground water.
Define: Cave
A natural underground opening with a connection to earths surface.
Define: Well
Holes dug or drilled into the ground to reach an aquifer.
Define: Hydrologic Cycle
A never ending natural circulation of water through earths systems.
What are the 2 types of Wells?
Ordinary and Artesian Wells.
Define: Zone of Saturation
Define: Sinkhole
A depression made when a cave collapses, or by direct dissolution of limestone by acidic water.
Define: Drawdown
The difference between original water table level and the water level in a pumped well.
Define: Porosity
The amount of pore space in a material.
It occurs when water is drawn out of the well at a rate that is faster than that at which it is replaced.
Define: Zone of Aeration
Above the water table, materials are moist, but because they are no saturated with water, air occupies much of the pores.
Define: Stalacite
A form of drip stone that hangs from caves like icicles, and forms graduall.
Define: Recharge
When water from precipitation replenishes the water content of an aquifer.
Define: Water Table
The upper boundary of the zone of saturatio.
What is an Aquifer that is located between Aquicludes?
Confined Aquifer.
What are the 3 threats to ground water that we have went over?
Over-Extraction , Pollution , and the surface sinking.
Define: Stalagmite
What’s the difference between Ordinary and Artesian Wells?
Ordinary Wells are holes dug to reach aquifers, while artesian wells use pressurized water in their aquifiers to spurt above the surface.
Define: Groundwater
Only water in the zone of saturation.
Although earths crust appears to be solid, it is composed of soil, sediment, and rock that contain countless small opening. What are does openings called?
Pore Spaces.
What percentage of total water on Earth does Groundwater make?
97.2%
Difference between Aquifers and Aquicludes?
Aquifers are what ground water flows through, while Aquicludes are Barrie’s to groundwater flow.
What is harder to clean out of groundwater? Salt or Chemicals?
Chemicals, because water can be undrinkable when the salt contents are high enough.
What percentage of water is contained by landmasses?
3%
Define: Discharge
The measure of the volume of stream water that flows past a particular location within a given time period.