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22 Cards in this Set

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  • Back
WATER QUALITY
the degree of purity of water
PH
how acidic or basic a substance is, measured on a scale of 1 to 14.
HARDNESS
the level of the minerals, calcium and magnesium in water.
CONCENTRATION
the amount of one substance in a certain volume of another substance.
FILTRATION
the process of passing water through a series of screens that allow the water through, but not larger solid particals.
FLOCS
sticky globs created by adding a chemical such as alum during water treatment.
COAGULATION
the process by which particles in a liquid clump together, a step in the water treatment process.
SEWAGE
water containing human waste
SLUDGE
deposits of fine solids that settle out from wastewater during the treatment process.
SEPTIC TANK
an underground tank containing bacteria that treats wastewater as it passes through.
LEACH FIELD
the ground area around a septic tank through which wastewater filters after leaving the tank.
DROUGHT
a water shortage caused by lon periods of little rain.
CONSERVATION
the process of using a resource wisely.
DESALINATION
the process of obtaining fresh water from salt water by removing salt.
WATER POLLUTION
the addition of any substance that has a negative effect on water or the living things that depend on the water.
point source
a specific source of pollution that can be identified, such as a pipe.
nonpoint source
a widely spread source of pollution such as road runoff, that is difficult to link to a specific point.
acid rain
rainwater that is more acidic than normal
pesticide
a chemical intended to kill insects and other organisms that kill crops
kinetic energy
the form of energy that an object has because of its motion.
potential energy
energy that is stored and available to be used later.
hydroelectric power
electricity produced by the kinetic energy of water moving over a waterfall or dam.