Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Science > Glacier, Rivers, Wind > Flashcards

Glacier, Rivers, Wind Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
0
Q

Straitions

A

Long parallel scratches left in a rock by material in a glacier
-erosion!

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
1
Q

Arête

A

Sharp ridge formed when two cirques are next to each other

-erosion!

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Horn

A

When three or more cirques cut into the same peak and leave behind a pyramid shaped peak
-erosion!

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Terminal moraine

A

Pile of till that builds up at the front

Deposition

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Erratic

A

Large boulder moved by glacier usually different composition than surrounding
Deposition

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

U shaped valley

A

As a glacier movies it smooths the valley floor and carves the valley walls to vertically
Erosion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Hanging valley

A

Valley formed by tributary glaciers

Erosion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Drumlin

A

Long smooth canoe shaped hill that occur in groups

Deposition

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Cirque

A

Semicircle basin found at the head of a valley where a glacier started to form
Deposition

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Out wash plain

A

Sediments depositedddddd by glacial melt water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Esker

A

Long winding ridges formed from the remains of meltwater tunnels
D

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Kettle

A

Bowl shaped lake that form when buried blocks of ice have been left behind by a glacier
D

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Deflation

A

Wind picks up small sediments such as sand silt and clay

Heavy rocks are left behind

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Desert pavement

A

Layer of pebbles gravel boulders left behind due to deflation
Protect against further deflation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Abrasion

A

Wind driven sediments strike other rocks like sandpaper

Rocks become pitted and polished

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Venifact

A

Boulders and smaller rocks have been ground into shapes by blasts of desert sands
Weather the windward sides of large rocks into smooth surfaces
Shape gives clues about wind

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Plucking

A

Glacial snow and ice melt and the water freezes and breaks rock
-glaciers pick up pieces or rock

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Erosion

A

Transportation of material by water wind or ice

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Deposition

A

Erosion loses energy and drops the sediment it is carrying

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Drainage basin

A

Land area that contributes water to a stream

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Mouth

A

Where a river ends in a lake ocean or another stream

21
Q

Headwaters

A

Where a river begins

22
Q

Perennial stream

A

Constant water

23
Q

Ephemeral stream

A

Only carries when when it rains

24
Q

Windward side

A

The side that gets wind

25
Q

Leeward side

A

Side that doesn’t get wind (slip face)

26
Q

Snowline

A

Lowest elevation where there is snow all year long

27
Q

Zone of accumulation

A

Above snowline

New snowfall thickens the glacier and promotes movement

28
Q

Zone of wastage

A

Below snowline
Loses ice to melting
Loses ice to calving
When large chunks of ice break off into the ocean causing icebergs

29
Q

Valley / Alpine Glacier

A 
Ice masses that slowly advance down valleys that were originally occupied by streams
Ice stays within valley Walls
Found on all continents except Australia
Like rivers, they can be 
Short
Narrow 
Wide
Single
Or with branching tributaries
30
Q

Continental Glacier

A

Flow in all directions from one or more centers leaving only the highest mtns uncovered
Can be two miles thick
Found in Antarctica and Greenland
Grow to cover the earth during an ice age

31
Q

Cut banks

A

Located on the outside of the curve
Where most erosion takes palace
Where water traveling the most

32
Q

Point bar

A

Located on in side of the curve
Where most deposition takes place
Water travels slow

33
Q

Pool

A

Calm stretches of water that are often located by cut bank

34
Q

Riffles

A

Shallow choppy water located between meanders

35
Q

Oxbow lake

A

Formed when a meander is cut off from the flow of the river

36
Q

Meander

A

Course with many bends

37
Q

Floodplain

A

Flat valley floor that floods when rivers overflow their banks

38
Q

Delta

A

Sediment that accumulates when a stream enters a lake or an ocean

39
Q

Alluvial fan

A

Sediment water moves from steeper slopes to gentler slopes
Water loses velocity
Deposits sediments
Arid

40
Q

Playa lake

A

Basin floor is covered with water temporarily

Arid

41
Q

Sand dunes

A 
Hills of loose sediment deposited by strong winds when they reach an obstacle 
Important bc-
-water quality sand = good filter
- costal protection 
-cultural value
42
Q

Ice age

A

Last one 2-3 yrs ago
See levels were 100 m lower than today
Weight of ice sheets and glacial erosion changed the landscape of North America

43
Q

Calving

A

When big pieces of ice fall off of a glacier

44
Q

V shaped valley

A

Rivers

45
Q

Young streams-

A 
V shaped valley
Mtns region/hilly
Waterfall or rapids
Erodes bottom more than sides
High level of erosion
Fast
46
Q

Mature streams

A

Curving streams
Gradual slope
Medium speed
Erodes sides causing curves to form

47
Q

Old stream

A

Flows very slow through large broad and flat floodplain
The stream only eroding to the sides of the stream
Very large meanders
Oxbow lakes present

48
Q

2 erosional / depositinal features of wind

A

Erosional-
Desert pavement - when a heavy layer of boulders, gravel, pebbles are left behind due to deflation, prevents further deflation
Depositinal-
Sand dunes- hills of loose sand that form when the sand is deposited against an obstacle

49
Q

2 erosional / deposition of features of glaciers

A

Erosional-
U shaped valley- as a glacier moves it smooths the valley floor and carves the valley walls to vertical
Depositional-
Erratic-large boulder moved by glacier

50
Q

2 erosional / depositional features of rivers

A

Erosional-
Cut bank - located on the outside curve where most erosion games place
Depositional-
Point bar- located on the inside of the curve where most deposition takes place

Science (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions