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31 Cards in this Set

  • Front
  • Back
the limit or border of an area
a. political -a political boundary is artificially determined
b. natural -a natural boundary is marked by a landform such as a river
the bed of a stream or river, the path of ground through which a river flows
Chesapeake Bay
Largest estuary in the contiguous U.S., and one of the productive
the point where two rivers flow together
Contour line
a line on a topographic map that shows elevation above sea level
A ridge of land forming the highest points in a watershed
The wearing away of Earth’s surface when soil or rock is loosened (for example, by wind or water) then moved from one place to another.
A body of water formed where fresh water and salt water meet, and are mixed by tides. Salinity in an estuary varies
the recognizable attributes of an area including landforms, vegetation, structures, and bodies of water.
Flood plain
Wide flat border areas of rivers and stream onto which water spills out at times of high water flow.
Ground water
Water that soaks into the ground and collects in the spaces between soil and rock particles.
a natural feature of a land surface
Large bends in a stream formed when a stream begins to erode its banks more than the channel bottom
Natural features
The attributes of an area that are not created by human power including landforms, vegetation, and bodies of water.
Non-point source pollution
pollution that enters the water from a variety of sources including homes, farms, streets, and construction sites
Oxbow lakes
A crescent-shaped lake formed when a meander of a river or stream is cut off from the main channel
Point source
pollution that enters the water from a single location as a concentrated source
A long narrow chain of hills or mountains
A river is a stream of water of considerable volume, which travels downhill (from higher altitudes to lower altitudes due to gravity).
River mouth
the point where a smaller body of water enters a larger body of water
River source
the point of origin of a stream or river
Water that flows over the land and eventually flows into lakes, rivers or streams
A natural body of flowing water. Streams are characterized by their order (or stream size). The joining of two first order (smallest size) streams creates a second order stream. In turn, the joining of two second order streams create a third order stream.
something that is made by human power, something that is constructed
something that stands for or suggests something else by reason of relationship, association, convention, or accidental resemblance
Topographical Map
a map that shows elevation of a land area through the use of contour lines
a stream feeding a larger stream or lake
Water quality monitoring
The collection of water samples to analyze chemical and or biological parameters.
The land water flows across or through on its way to a stream, lake or wetland.
Watershed divide (or boundary)
An elevated area, such as a ridgeline or divide, that separates one watershed from another
The transition zone between dry land and permanent bodies of water such as rivers, lakes or bays. Wetlands may be completely or partially covered by water at different times of the year.