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Science
Definitions
35
Other
Not Applicable
01/29/2004

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Term
Ground Water
Definition
water that flows underground
Term
Pores
Definition
the scientific name for an air space, when you have several pores collected together, they create a passageway
Term
Permeability
Definition
any earth material in which a liquid can pass through- there are different degrees of permeability
Term
Porosity
Definition
a degree to which a material has pores
Term
Concentration
Definition
a certain number of unit a in a certain number of unit B
Term
Parts per million
Definition
units o measure for contamination in ground water
Term
Part per billion/trillion
Definition
still the number of parts of a substance per m,b,t, parts of the whole. The billion and trillion are used to look at a larger quantity of parts
Term
Source of Error
Definition
the mistake(s) in an experiment
Term
Zone of Aeration
Definition
top soil- comes in contact with air, air goes into the ground, and fills up some of the pores, another part of the topsoil is water.
Term
Zone of Saturation
Definition
- water keeps coming down until it hits an impermeable layer
- then it has no where to go but up, so the water keeps building up and up
- pores in that area where the water is building up, are saturated with water, there is no space for air to go
- upper part of zone of saturation is called the water table, where the water is no longer just saturating the soil, but now it has created a pool of water
Term
Water Table
Definition
Above the Permeable Layer when the ground is saturated, there is a pool of water above
Term
Impermeable Layer
Definition
A layer of ground that water can not pass through, and not because there are no pores, but because the pores are not connected well
Term
Aquifer
Definition
a layer of the ground that water can absorb water
Term
Aquitard
Definition
a layer of the ground that retards water
Term
top soil
Definition
decaying litter, decaying organic matter,
Term
sandstone
Definition
made up of sand sized particles of quartz and feldspar- cemented together with clay, because of the mix, pores and air spaces are created- permeable
Term
conglomerate
Definition
a mass of things coming together. Pebble sized stones of different sizes, again cemented together. Stuff: Granite, gneiss (more compacted form of granite), quartz, feldspar
Term
Granite
Definition
impermeable rock that is a really thick layer
Term
Basalt
Definition
an impermeable rock that is usually under lakes
Term
Water Quality
Definition
is a measurement of substances in water besides water molecules
Term
Acidity:
Definition
The Ph of water is a measurement of how acidic or basic it is, on a scale of 0-14. Pure water is neutral, meaning it is neither acid or a base, and has a Ph of 7, the lower the number, the more acidic it is
Term
Hardness
Definition
The level of two minerals-calcium and magnesium. Hard water has more minerals, makes less suds with soap, and Soft water has less minerals, and takes less detergent to clean clothes
Term
Concentration
Definition
the among of one substance in a certain volume of another substance.
Term
Filtration
Definition
the process of passing water through a series of screens that allows the water through, but not larger solid particles.
Term
Flocs
Definition
sticky particals that causes water molecules to stick to each other and fall to the bottom of a basin
Term
Coagulation
Definition
the process of Flocs making water stick to each other
Term
Sewage
Definition
Stuff that goes down our drain, and different kinds of wastes in it are called Sewage
Term
Sludge
Definition
The stuff that is taken out of sewage, when treated with heat and chemicals it can be used as fertilizer
Term
Septic Tank
Definition
An underground tank containing bacteria that treats wastewater as it passes through.
Term
Area Source:
Definition
wide spread contamination
Term
Point Source spread over time
Definition
one central location of contamination- may
Term
Plume
Definition
Boundry of contamination
Term
Clutter
Definition
a bunch of wells close together
Term
Linear
Definition
relatively speaking: you have wells in a straight line
Term
Scattered
Definition
Distributed (more or less) over the map
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