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Unit 5

Unit 5 Geography

What is the core? It is at the center of the earth.
What is the mantle? Makes up most of the earth's mass
What is the crust? The outer most layer of earth
What is magma? Liquid rock that is within earth's surface
What is lava? Magma that has reached earths surface
What is plate tectonics? How forces within the earth create land forms
What is continental drift? The movements of earth's plates across the mantle
What are rift valleys? They are formed underwater when plates move apart frome eachother
What is the abyssal plains? When ocean floors sink because there is no heat below them, these regions are smooth
What are continental shelves? The surface that extend under shallow oceans
What are folds? Areas of compressed rock that occurs when plates collide with each other
What are faults? Faults occur when rock masses have moved apart and broken away from each other.
What is weathering? The process by which rocks break down and decay over time.
What is sediment? The smaller particles of rock, gravel, sand, and mud that weathering breaks rocks into
What is erosion? The Movement of surface material from one location to another, wind, water, and ice cause this to take place
What are glaciers? Thick masses of ice
What is a plateau? An elevated flatland that rises sharply above nearby land on at least one side
What is the alluvial fan? sediment eroded from a mountain to the base of the mountain
what is a delta? accumulated sediment at the opening of an ocean
Created by: loveexbugg