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Aquatics matching

Terms for the aquatics section of the Envirothon.

Acid rainrain containing pollutants that give it a pH of less than 7.0.
Algaephotosynthetic organisms with a one-celled or simple multicellular body plan.
Aquifera sand, gravel or rock formation capable of storing or conveying water below the surface of the land.
Best Management Practicesa practice or combination of practices that provide an effective, practical means of preventing or reducing pollution from non-point sources.
Bioaccumulatethe practice of concentrating a particular substance over time.
BODBiochemical Oxygen Demand. A measure of the quantity of oxygen used by microorganisms in the aerobic oxidation of organic matter.
Buffera vegetated area of grass, shrubs or trees designed to capture and filter runoff from adjoining land uses.
Cultural Eutrophicationprocess whereby human activity increases the amount of nutrients entering surface waters.
Dendritica pattern of stream drainage that resembles the pattern of a tree.
Dischargethe flow of surface water in a stream or canal or the outflow of groundwater from a flowing artesian well, ditch or spring.
Dissolved Oxygenoxygen dissolved in water which is readily available to plants and animals.
Estuaryan arm of the sea that extends inland to meet the mouth of a river, usually characterized by tidal changes and rich diversity of aquatic life.
Eutrophicationa process in which organic matter accumulates in a body of water until eventually it fills in and becomes dry.
Fecal Coliformthat part of the cloiform group of bacteria originating in the intestinal tract of warm blooded animals.
Floodplaina low area of land, surrounding streams or rivers, which holds the overflow of water during a flood.
Fresh Waterwater that is not saline or brackish.
Groundwaterwater beneath the Earth's surface between saturated soil and rock.
Hardnessa characteristic of water caused by the presence of various salts, calcium, magnesium and iron.
Headwatersthe uppermost reaches of a river or stream.
Hydric Soilssoils found in saturated, anaerobic environments usually characterized by grey or mottled appearance, found in wetlands.
Hydrologic Cyclethe series of pathways the earth's water may take on its journey from the sea to the atmosphere to the land and ultimately back to the sea.
Limnologythe study of inland waters - ponds, lakes, and streams
Littorralregion of shallow water where light reaches the bottom
Meanderthe circuitous winding or sinuosity of a stream, used to refer to a bend in the river
NitrateAn important nutrient for building protein in plants and animals
Nonpoint source pollutionpollution that originates from many diffuse sources and usually is not regulated, such as runoff from streets
Parts per million (ppm)The quantity of one substance contained in one million units of another substance
phosphorusAn important part of life, especially plants and animals
planktoncollective word for microscopic organisms that drift around in the upper level of a body of water
Point source pollutionpollution that is discharged through a pipe or other conduit and is usually a regulated discharge
ponda quiet body of water os shallow that rooted plants usually grow completely across it
receiving watersall distinct bodies of water that receive runoff such as streams, rivers, ponds, lakes, and estuaries
rifflea shallow section of a stream where water bubbles over rocks, often found at the bend in a river
riparianrelating to the banks of a sream or river
Runthe straight section in a river between riffles, also refers to fish migration
Runoffwater, including rain and snow, which is not absorbed into the ground - instead it flows accross the land and eventually runs into streams and rivers
Sedimentsoil,sand, and materials washed from land into waterways
StreamA body of running water moving over the earth's surface in a channel or bed
Subwatersheda small watershed that is part of a larger watershed such as the watershed of a tributary stream
Surface waterwater that flows over or is found on the Earth's surface
Thermoclineintermediate (middle) layer of water in a lake
Tributarya stream or river that flows into another larger stream or river
Turbiditya measure of water cloudiness caused by suspended solids
waterfowlbirds that depend on water for habitat i.e. Ducks
Watershedan area of land that drains into a particular river or boby of water usually divided by topography
Watertablethe upper level of groundwater
Waterwaya natural or man-made place for water to run through ( such as river, stream, creek, or channel

maureen bartlett

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