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Chap 1, Sec 3
Terms in this set (53)
streams and smaller rivers that feed into the major river.
land area that gives H2O to a river system
one watershed is separated from another by a ridge of land
lake that stores water for people use.
substances like nitrogen and phosphorus that allows plants and algae to grow.
when nutrients build up in the lake over many years.
place to get water where the water increases because of pressure inside an aquifer.
underground layer of rock or sediment that holds water
layer of rocks and soil above the water table
top of saturated zone
area of permeable rock or soil that is totally filled with water
rocks and soils that do not let water pass through easily.
rocks and soils that allow water to pass through. eg sand and gravel
a river and all its tributaries together
the end of the river, where it flows into another body of water
looping curves in a river
still (or standing) bodies of freshwater that are shallow enough for sunlight to reach the bottom of all parts
formed when a curve along a rive gets cut off from main river, and the river takes a straighter path
the broad, flat valley through which a river flows
still (or staindin) bodies of freshwater that are so deep that sunlight cannot reach the bottom
the many small streams that come together at the source of a river
formed at the end of the river, as it slows down and deposits the sediment it was carrying
the part of the river system where the tributary joins the main river
most of the available fresh water on Earth comes from this
very hot water that has been circulating deep underground and then begins to rise through narrow passages in the rock creates a ____
spaces between rock and soil particles
describes soil made up of sand, gravel, silt, or clay deposited by running water
a valley with steep sides, carved out of the land by a fast-moving river, also known as a gorge
the bed through which a stream or river flows; a passage of water that connects two larger bodies of water. Most of these occur naturally; some are of human construction, such as canals
the dropping of sediment (or load) by a river or stream; as the water loses velocity, the soldiparticles will no longer stay in suspension
the amount of water that flows past a given point during a specific period of time. This usually is measured in cubic feet per second or gallons per minute
a river branch that flows away from the main stream, often found in deltas
wearing away the Earth's surface through the actions of running water, glaciers, and winds. Running water carries eroded soil in suspension and deposits it elsewhere
a large stream that originates in a well-waatered area far from the desert that it flows through
found in, produced by, or relating to a river
the penetration of water from precipitation through the top surface of the soil
a large stream of flowing water, usually with several tributary streams flowing into it
precipitation that cannot be absorbed into the ground; it flows over the surface and into streams, rivers, or lakes
a liquid in which small particles of solid matter are floating, but not dissolved
a marine ecosystem containing both fresh and saltwater, formed when a river mouth is overrun with water from the ocean due to rising sea levels or a drop in coastal elevation
the speed of the flow of water in a river or river system
an earthen wall running alongside a river, formed by sediment deposited as flood waters overrun the riverbank
second order stream
owning first order streams as tributaries
water flowing through its channel only during rainy seasons
the lowest depth to which a stream can erode its channel; sea level is the ultimate example of this
a stream usually with a high bedload of sediment that contains sand bars or islands around which the water flows
a section of river formed when erosion cuts a channel across the narrow neck of a meander; the river then flows through the new channel instead of through the meander
the slope (or vertical drop) of a stream channel; the steeper this is, the highter the stream's velocity
the bouncing or hopping over the stream bed of smaller rocks or gravel as they are pushed by moving water
particles of solid material, such as sand or gravel, that are transported by the flow of water in a stream
a chaotic water flow, with currents moving in more than one direction- usually influenced by a steep gradient high velocity and/or roughness in the streambed
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