Weathering, Erosion and Deposition
The process by which material such as sediment, minerals, and rocks are set down in another area.
Deposition
Two structures at the end of a river.
The river delta and river mouth
Erie PA during the last ice age was covered by ice: True or False?
True
What is rocks crumbling into smaller rocks by a physical process called?
Mechanical weathering
Name one mass movement that is slow and one mass movement that is fast.
Slow: Creep
Fast: Landslide or Avalanche
Limestone underneath the ground dissolves once it reacts with carbonic acid and everything above it collapses as a result. What feature is formed?
A sinkhole
The reason why the Mississippi drainage basin is so large.
Both the Missouri and Ohio river systems feed into it
Put the following in the correct order for the steps of the formation of glaciers:
1. Ice
2. Snow
3. Movement
4. Firn
Snow, Firn, Ice, Movement
or
2,4,1,3
1) What climate is associated with chemical weathering? 2) What climate is associated with mechanical weathering? (You will have two answers, one for each weathering type's climate!)
1) Hot and humid
2) Dry and cold
What is the force responsible for all mass movements called?
Gravity
The process by which minerals around water combine with the water to become clay.
Hydrolysis
1) Where is the greatest amount of erosion in a river?
2) Where is the greatest amount of deposition in a river?
For double the points, explain why erosion and deposition are found in different amounts based on the side of the river?
1) The outside
2) The inside
The water runs fastest on the outside/has the most power
The water runs slowest on the inside/loses power and drops sediments
What are two specific locations where continental glaciers are found?
Antarctica and Greenland
What type of weathering does frost wedging fall under?
Mechanical weathering
The mass movement that is most likley to occur if you were snowboarding and a weak layer slid out from underneath you.
An avalanche
What are two reasons why the Northeast United States has the most acid rain?
We have a lot of factories and Westerly winds bring over a lot of pollution from the west coast.
Name four features of a river.
Could be any four: The mouth, delta, tributaries, floodplain, oxbow lake, meander, curves
Name one way that a terminal moraine differs from a medial moraine.
The terminal is at the farthest advance and the medial moraine is located between two glaciers
What is oxidation?
When oxygen reacts with other substances to form rust
What is the mass movement that occurs most frequently after large rainstorms? It can also sometimes occur on mountaintops when the snow at the tip is heated up causing a weakening of the snow layer.
Mudflow
1) What is the reason why Erie, PA does not have Karst Topography? 2) What mass movement do we not have to worry about in Erie related to our lack of Karst Topography?
1) We do not have limestone deposits
2) Sinkholes
Three stages of a river and characteristics of each stage.
Youthful (straight and fast), mature (erosion and deposition, medium speed), old (meanders, oxbow lakes, u-shaped valley)
What created Presque Isle-- there should be TWO terms learned this unit for this to be correct.
A terminal moraine created by a continental glacier.
Name two features that occur when limestone dissolves beneath the surface.
sinkhole, disappearing stream, or caves.
Imagine you have walked down the same street every day walking home from school. Over time you have noticed that the tree trunks were exposed and pulling up the sidewalk and the telephone poles look as if they are tipping. 1) What mass movement is most likely occurring here? 2) Why is it that you didn't notice it right away but only after a long period of time?
1)Creep, 2) Because creep moves really slow