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37 Cards in this Set
- Front
- Back
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Where can the fastest moving water in a river be found?
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In the center of the channel away from the edges
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The steepness of a stream is called the...
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gradient
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The gradient of a strem in the mountains is....
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large
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The flow rate of a stream at a certain location is called its....
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discharge
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Discharge is measured in ...
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cubic meters per second
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The further downstream you go in a river the ____ the discharge is.
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greater
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Water velocity at a river mouth can be large because...
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the channel is deep and there are fewer obstacles to create friction and slow the water
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The lowest point that a stream seeks is called....
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base level
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A stream reaches a ____ base level when it enters a lake, a larger stream or an area of hard rock.
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temporary
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Meanders are likely to form in a ____ gradient
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small
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Meanders are likely to occur in ____ plains and have a ____ shape to the cross section of the river.
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flood
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The cross-section of a river in the mountains is like to have a ___ shape.
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V
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The ability of a stream to carry materials is called....
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competence
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As velocity of a stream increases, the competence...
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increases
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Large, heavy objects carried by a stream are likely to be dropped ___ by the stream during a flood, as water slows.
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quickly
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A sandy bottom of a river area indicates a ___ water velocity than an area with 1 inch rock pebbles.
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slower
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Where do deltas form?
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At river mouths
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Deltas have what shape?
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They fan out like a triangle
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Deltas have ______ which are the opposite of tributaries.
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distributaries
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"Feeder" streams into a river are called...
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tributaries
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Elevated embankments above the sides of a river are called...
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levees
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How to levees naturally occur?
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The flood waters drop the heaviest components of their load close to the river because the water is slowing. Over time, it piles up.
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A flood that has a 1 in 100 chance of occurring is called a ....
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100 year flood
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The upper limit of water in an aquifer is called the ....
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water table
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Groundwater is found in a place called an....
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aquifer
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Place where the water table meets the surface of land is called a ....
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spring
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What can happen to land if we remove too much water from the aquifer?
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subsidence
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Land cave-ins from water removal are called....
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subsidence
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Water hitting the ground on the eastern side of the the continental divide (in the Applachian mounts) flows toward....
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the Aalantic Ocean
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Water that hits the groud on he western side of the continental divide (in the Appalachian mountains) flows toward...
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the Mississippi River and the Gulf of Mexico
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Water that is hard has a lot of ____ dissovled in it.
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calcium
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Limestone country is also called ___ topography.
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Karst
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The largest aquifer in our country is the...
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Ogallala
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Stalactites form where?...
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ceiling
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Stalagmites form where?
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on the floor of a cavern
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For caverns to form, the must be made of...
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limestone
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Limestone has the ability to ....
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dissolve
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