Earth's center, where pressures and temperatures are very high

The section of Earth's interior that lies above the outer core and has the most mass

The theory that earth's crust is divided into rigid plates that slowly move across the upper mantle.

The process by which earth's plates slowly move across the upper mantle.

places on earth's surface where the crust stretches until it breaks.

Areas of the ocean floor where rocks gradually sink because they have no supporting heat below them;the world's flattest and smoothest regions,

Areas where continental surfaces extend under the shallow ocean water around the continents.

a deep valley marking a collision of plates, where one plates slides under another.

places where rocks have been compressed into bends by colliding plates.

Places where rocks masses have been broken apart and moving away from each other.

the process by which rocks break and decay over time.

small particles of weathered rock

Movement of surface material from one location to another by water, wind, and ice.

Thick masses of ice, including great ice sheets and bodies of ice that flow down mountains like slow rivers.

An elevated flatlands that rises sharply above nearby land on at least one side

Fan-shaped deposit of mud and gravel often alng the bases of mountains.

Accumulation sediments at the mouth of a river.

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chapter 4 vocabualry

Term	Definition
Core	Earth's center, where pressures and temperatures are very high
Mantle	The section of Earth's interior that lies above the outer core and has the most mass
Plate tectonics	The theory that earth's crust is divided into rigid plates that slowly move across the upper mantle.
Continental drift	The process by which earth's plates slowly move across the upper mantle.
rift valley	places on earth's surface where the crust stretches until it breaks.
abyssal plains	Areas of the ocean floor where rocks gradually sink because they have no supporting heat below them;the world's flattest and smoothest regions,
continental shelves	Areas where continental surfaces extend under the shallow ocean water around the continents.
trench	a deep valley marking a collision of plates, where one plates slides under another.
folds	places where rocks have been compressed into bends by colliding plates.
faults	Places where rocks masses have been broken apart and moving away from each other.
weathering	the process by which rocks break and decay over time.
sediment	small particles of weathered rock
erosion	Movement of surface material from one location to another by water, wind, and ice.
glaciers	Thick masses of ice, including great ice sheets and bodies of ice that flow down mountains like slow rivers.
plateau	An elevated flatlands that rises sharply above nearby land on at least one side
alluvial fan	Fan-shaped deposit of mud and gravel often alng the bases of mountains.
delta	Accumulation sediments at the mouth of a river.

Created by: hannsmith

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