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Earth's Changing Surface Test
test
22
Science
7th Grade
12/10/2007

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Cards

Term
Erosion
Definition

the process by which natural forces move weathered rock and soil from one place to another

Term
Agents of Erosion
Definition

gravity, running water, glaciers, waves & wind

Term
Sediment
Definition

Material moved by erosion

Term
Deposition
Definition

occurs where the agents of erosion have laid doen ( deposited ) sediment

Term
What do weathering, erosion, and deposition act together do?
Definition

They act together in a cycle that wears down and builds up Earth's surface

Term
Gravity
Definition

the force that moves rock downhill

Term
mass movement
Definition

the processes that moves rock downhill

Term

Types of mass movement

Definition

landslide, mudflows, slump & creep

Term
landslide
Definition
rock and soil slide quickly down a steep slope
Term
mudflows
Definition
rapid downhill movement of a mixture of water, rock & soil
Term
slump
Definition
a mass of a mixture of rock & soil suddenly slips down a slope
Term
Creep
Definition
very slow downhill movement of rock and soil
Term
Mass movement that is rapid and steep slope
Definition
landslide or slump
Term
Mass movement that is rapid and gentle to steep slope
Definition

mudflow

Term
mid-ocean ridge
Definition
the areas in which molten material rises from the mantle and erupts
Term
rock cycle
Definition

three types of rock can form in the rock cycle:

Sedimentary

Igneous

Metamorphic

Term
sea-floor spreading
Definition
a slow process through which new crust is formed
Term

trench

Definition
the area in which old crust is recycled back into earth
Term
Volcano
Definition
Both a fast and slow process in which the earth vents itself
Term
earthquake
Definition

a sudden release of pressure inside the earth

Term
3 ways plates can move
Definition
sea floor spreading, compressing, sliding past eachother
Term
oceanic-oceanic compression
Definition

one plate is subducted below the other and volcanoes are formed. This can turn into islands.

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