Surface Water Flashcards

1
Q

what is a stream?

A

any flowing liquid body of water

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2
Q

a ______ is any flowing liquid body of water

A

stream

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3
Q

a stream flows _____ slope

A

down

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4
Q

a _____ is a clearly defined natural passageway

A

channel

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5
Q

the steepness of a streams slope is called….

A

its gradient

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6
Q

a steep stream flowing downhill has a _____ gradient

A

high

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7
Q

streams flow within ______

A

channels

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8
Q

What is a channel?

A

the natural passageway through which the stream flow.

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9
Q

What are three types of channels?

A
  • straight
  • meandering
  • braided
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10
Q

this is the amount of water in a stream…

A

stream discharge

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11
Q

Stream discharged is measured as…

A

volume per time

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12
Q

_____ ______ is the amount of water flowing at any point in time

A

stream discharge

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13
Q

____ ____ is the amount of sediment carried in a stream

A

stream load

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14
Q

_______ channels usually occur in small stretches

A

straight

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15
Q

what type of channel is more common at the beginning of a stream?

A

straight

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16
Q

What type of channel has a steep gradient?

17
Q

where do braided steams occur?

A

in very low gradients.

18
Q

when water empties out onto some type of plain you will see which type of channel ?

A

braided stream

19
Q

what is the most common type of channel?

A

meandering

20
Q

what is a floodplain?

A

flat fertile valley that is periodically flooded

21
Q

lakes are…

A

standing bodies of water with open surfaces

22
Q

an inlet is…

A

a source of water flowing into a lake

23
Q

an outlet is…

A

a source of water flowing out of the lake

24
Q

does a freshwater lake have inlets, outlets, or both?

25
Does a saltwater lake have inlets, outlets, or both?
inlets
26
water that flow both into and out of a freshwater lake carry...
water, sediments, and dissolved minerals
27
what are the five types of lakes? In order from most common to least common
1. Glacial 2. Tectonic 3. Riverine (floodplains, oxbow lakes) 4. coastal 5. volcanic
28
where are tectonic lakes formed?
In areas of the world where the crust is being stretched apart by tectonic forces.
29
How are tectonic lakes formed?
as the crust is being stretched apart, entire blocks of the crust can sink down and entire lakes can form in the depressions.
30
Volcanic lakes form on the tops of _______
volcanoes
31
scarcity of water is a cause of ______ in many areas of the world
conflict