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Geo Test Review
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28
Geography
8th Grade
11/18/2010

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Term
Erosion
Definition
The wearing away of land of water, wind, waves, and ice
Term
Rock Weathering
Definition
Process that breaks up rocks and causes them to decay
Term
sediment
Definition
Small particles of mud, sand, or gravel created Earth's surface
Term
Glacier
Definition
A thick mass of ice that moves slowly across the Earth's surface
Term
Sand dune
Definition
A hill of wind-deposited sand
Term
Lava
Definition
Melted liquid rock, or magma, from within the earth's surface
Term
Volcano
Definition
The opening in the earth's crust through which lava flows; the surface feature created by the lava
Term
Fold
Definition
A feature of the earth's crust created by the bending of rock layers
Term
Fault
Definition
A feature of the earth's crust by breaking and movement of rock layers below the surface
Term
Earthquake
Definition
The shockwaves, or vibrations, caused by movement along a fault
Term
Landform
Definition
A shape on the earth's surface
Term
Plain
Definition
A nearly flat area of land
Term
Plateau
Definition
An elevated flat land
Term
Relief
Definition
The difference in elevation between the top and bottom of a landform
Term
Floodplain
Definition
A landform at level ground built by sediment deposited by a river
Term
Alluvial Fan
Definition
A fan shaped deposit of sediments located at the base of a mountain
Term
Delta
Definition
The landform at the mouth of a river formed by deposits of sediment
Term
Primary Landform
Definition
Large masses of rock raised by volcanic eruptions and other forces
Term
Secondary Landform
Definition
Developed from primary landforms due to erosion
Term
Rock Weathering
Definition
Slow and often impossible to dectect
Some weather is like tooth decay some is like chipping or breaking a tooth
Sediment and rocks move due to gravity or is removed by erosion
Term
Water
Definition
Most powerful force of erosion and transportation
Water can cause gullies and canyons
Term
Sheet glaciers
Definition
Huge ice sheet covering vast areas; Moving and destroying everything in its path while protecting the ground underneath Found today in Greenland and Antarctica
Term
Mountain Glaciers
Definition
Smaller and more common than sheet glaciers; formed from snow that does not melt in summer. Found throughout the world
Term
Wind
Definition
Like water, wind also erodes rock and transport sediment b) There is the greatest amount of wind erosion where there are fewer plants, such as beachers and deserts
Term
Inside the earth
Definition
Inner to Outer: Inner Core, Core, Mantle, Crust
Term
Forces Beneath the Crust
Definition
A)Earth's surface is bent and broken by movements in the crust and upper mantle b)Heat currents move up from the core, melting parts of the mantle, causing crust to rise, and sometimes causing lava to break through.
Term
Primary and Secondary Landforms
Definition
Older landforms are smoother and roudner than younger landforms
Term
Classifying Landforms
Definition
a) Landforms made of rock, with thin layer of sediment and soil, slowly lowere due to erosion. Ex: Plains, Plateaus B) Landforms formed by sediment deposited by water, wind, or ice. C) Landforms caused by tectonic activities. D) Creates landform; deposition and erosion. Terrain is usually comprised of all 3 types of landforms
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