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Flashcards in Surface Water Deck (31)
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1

what is a stream?

any flowing liquid body of water

2

a ______ is any flowing liquid body of water

stream

3

a stream flows _____ slope

down

4

a _____ is a clearly defined natural passageway

channel

5

the steepness of a streams slope is called....

its gradient

6

a steep stream flowing downhill has a _____ gradient

high

7

streams flow within ______

channels

8

What is a channel?

the natural passageway through which the stream flow.

9

What are three types of channels?

- straight
-meandering
- braided

10

this is the amount of water in a stream...

stream discharge

11

Stream discharged is measured as...

volume per time

12

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

stream discharge

13

____ ____ is the amount of sediment carried in a stream

stream load

14

_______ channels usually occur in small stretches

straight

15

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

straight

16

What type of channel has a steep gradient?

straight

17

where do braided steams occur?

in very low gradients.

18

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

braided stream

19

what is the most common type of channel?

meandering

20

what is a floodplain?

flat fertile valley that is periodically flooded

21

lakes are...

standing bodies of water with open surfaces

22

an inlet is...

a source of water flowing into a lake

23

an outlet is...

a source of water flowing out of the lake

24

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

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