Unit 7

Front 1

On which planets and moon do we see hydrologic processes?

Back 1

Earth, mars, and the Saturn moon Titan

Front 2

What effect do a large number of lakes have on the ocean (possibly)?

Back 2

They prevent the rise in sea level because the water is not returning to the ocean

Front 3

Tributary

Back 3

A steam or a small river that joins a larger river. The larger river can be a tributary if it joins an even larger river.

Front 4

Characteristics of a river system

Back 4

Number of tributaries decrease downstream.

Tributary length increase downstream.

Widths are wider and deeper downstream.

Front 5

Water velocity

Back 5

In the US commonly reported as feet/sec WITHIN a river channel.

Front 6

Discharger velocity

Back 6

The calculated volume of water of a river as it moves past a specified line per unit of time (ex: 4000 cubic feet of water/sec)

Front 7

Best place to picnic with the area of a river curve.

Back 7

Inside of the curve because The outside of the curve has the fastest water velocity.

Front 8

Meander

Back 8

Broad, looping bend in a river that can form a sinuous (winding) pattern.

Front 9

Within a meander, where within a channel would "point bars" and "cut-banks" occur?

Back 9

Cut banks- on the outside curve of a river channel meander.

Point bars- crescent shape accumulation of sand and gravel deposited on the inside of a river channel meander.

Front 10

Oxbow lake

Back 10

A temporary lake Formed in the channel of an abandoned meandering river or stream.

Front 11

Continental divide

Back 11

The main divide or imaginary line of any continent that separates rivers that empty into different ocean basins

Front 12

Dendritic drainage pattern

Back 12

Tree like drainage patterns that extend upslope to the eroding edge of the drainage basin.

Found on earth, mars, and the moon Titan.

Front 13

Incised channel

Back 13

River channel cut into solid rocks which form canyons

Front 14

River pothole

Back 14

Cone shaped hole or depression formed in a river bed by swirling and grinding action of individual rocks and gravel.

Front 15

Describe the direction that a waterfall like Niagara Falls will "migrate"?

Back 15

Upriver migration of a waterfall over time, as exemplified by the ever-moving location of Niagara Falls.

Front 16

River piracy

Back 16

The diversion of the waters of one stream into another steam.

Ex: Pecos river

Front 17

What is a rivers sediment load?

Back 17

Rocks and soil, etc. that is carried along by the water movement.

Suspended load- mud or fine particles

Bed load- sand and gravel

Dissolved load- dissolved minerals, acids, ions, gas, and pollutants.

Front 18

Floodplain

Back 18

The flat, occasionally flooded area that border a river or stream ( filled with alluvium)

Front 19

Bird foot delta

Back 19

The Mississippi river delta

Front 20

Avulsion

Back 20

This represents a shift in the main course of a river to a totally new and different channel that results in forming a new delta in a new location.