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Water Systems

Water Cycle a continuous pattern in nature in which water moves as it changes state above, on, and below the surface of Earth
Turbid not clear; containing tiny specks of sediment or other solid matter
Thermal Pollution artificially raising the temperature (for example, of water)
Melting the change of state from a solid to a liquid; occurs when a solid gains thermal energy
Sublimation the change of state from a solid to a gas without first becoming a liquid; occurs when a solid gains thermal energy
Evaporation the change of state from a liquid to a gas; occurs when a liquid gains thermal energy
Condensation the change of state from a gas to a liquid; occurs when a gas loses thermal energy
Deposition the change of state from a gas to a solid; occurs when a gas loses thermal energy
Freezing the change of state from a liquid to a solid; occurs when a liquid loses thermal energy
Runoff water from precipitation and snowmelt that flows over Earth’s surface
Groundwater water that seeps through soil and cracks in rock; source of water for underground springs and wells
Aquifer a geological formation of loose rock or soil that is saturated with groundwater
Water Table the depth at which loose rock and soil below Earth’s surface are saturated with water; the upper boundary of an aquifer
Precipitation solid or liquid water that falls to Earth’s surface
Polar Ice Sheet a frozen field of ice covering either the North Pole or the South Pole
Ice Cap a large area of ice that permanently covers land
Glacier a river of ice, formed from snow accumulated over hundreds of years, that moves slowly downhill under the force of gravity
Water Treatment the process of removing potentially dangerous substances from water to make it more acceptable for a desired end-use
Floc sticky clumps formed from the reaction of alum in water, combined with sand and other waste solids
Sustainability being able to meet the needs of the present without compromising the ability of future generations to meet their own needs
Salinity a measure of the quantity of dissolved salt in water
Concentration a measure of the quantity of dissolved substance contained per unit volume of solution
Desalination the technology of removing salt and other minerals from water
Contaminant an undesirable substance in a mixture
Fertilizer a substance used to provide nutrients to plants, usually for the purpose of increasing crop production
Herbicide a chemical substance used to kill or slow the growth of certain plants; often used to kill weeds that compete with crop plants
Pesticide a chemical substance used to kill animal pests; often used to kill insects that damage crop plants
Watershed an area surrounded by high land and drained by a river and its tributaries; all runoff from within the watershed leaves the watershed at the same exit
Bioremediation the use of living things (micro-organisms, fungi, and green plants) to remove contaminants from a polluted environment
Sewer System a network of pipes that transports dirty or used water
Blackwater water that contains feces and urine; also called “sewage”
Greywater water that has been used for cooking, laundry, bathing, or similar tasks
Wastewater water that has been used or contaminated by human activity; blackwater and greywater
Stormwater Runoff water, usually from precipitation, that runs off roofs, lawns, and paved areas
Created by: tart612
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