Earth's outer layer; the coolest and least dense layer of Earth.

The layer of Earth beneath the crust. It is about 2,900 km (1,800 mi) thick, and makes up 83 percent of Earth's interior.

A layer of molten iron an nickel that surrounds the inner core of Earth.

A dense sphere of solid iron and nickel at the center of Earth.

The distance north or south of the equator measured in degrees.

The distance each or west of the prime meridian in Greenwich England; measured in degrees.

A mountain-like landform that develops when tectonic plates moves apart or separate and a new ocean lithosphere forms.

A process by which new sea-floor is formed from the magma rising Earth's diverging oceanic plates.

Location where two tectonic plates meet and are and are moving away from each other.

Location where two tectonic plates meet and are moving toward each other.

Location where two tectonic plates meet and slide past each other (without creating a new landform).

The process by which one plate of the lithosphere sinks and slides under another.

Long, deep formation on the ocean floor that develops where two tectonics plates are moving towards each other, and one is moving under the other.

A piece of Earth's crust that, according to plate tectonics, is pushed by movement in the asthenosphere.

The cool, solid other shell of Earth. It consists of the crust and the rigid uppermost part of the mantle and is broken up into segments, or plates.

The breakage of a rock into two or more pieces.

The ability of rock to be stretched and then return to its original position once the stress has been removed.

The amount of force being applied to a rock or surface.

Change in volume, size, or shape that results from stress.

A theory that the lithosphere is broken into segments, or plates, that "float" on the asthenosphere, and the interactions among these plates are associated with earthquakes and volcanic activity and form mid-ocean ridges, trenches, and mountains.

Crust that contains mostly land, ranging from 15-70 kilometers (9 to 43 miles) thick.

Crust that lives between the ocean, ranging from 5 to 10 (3 to 6 mi) thick,

The breakage of a rock into two or more pieces.

The valley formed by a diverging plate boundary.

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Plate Movement

Term	Definition
Crust	Earth's outer layer; the coolest and least dense layer of Earth.
Mantle	The layer of Earth beneath the crust. It is about 2,900 km (1,800 mi) thick, and makes up 83 percent of Earth's interior.
Outer Core	A layer of molten iron an nickel that surrounds the inner core of Earth.
Inner Core	A dense sphere of solid iron and nickel at the center of Earth.
Latitude	The distance north or south of the equator measured in degrees.
Longitude	The distance each or west of the prime meridian in Greenwich England; measured in degrees.
Oceanic Ridge	A mountain-like landform that develops when tectonic plates moves apart or separate and a new ocean lithosphere forms.
Sea-Floor Spreading	A process by which new sea-floor is formed from the magma rising Earth's diverging oceanic plates.
Divergent Boundary	Location where two tectonic plates meet and are and are moving away from each other.
Convergent Boundary	Location where two tectonic plates meet and are moving toward each other.
Transform Boundary	Location where two tectonic plates meet and slide past each other (without creating a new landform).
Subduction	The process by which one plate of the lithosphere sinks and slides under another.
Ocean Trench	Long, deep formation on the ocean floor that develops where two tectonics plates are moving towards each other, and one is moving under the other.
Tectonic Plate	A piece of Earth's crust that, according to plate tectonics, is pushed by movement in the asthenosphere.
Lithosphere	The cool, solid other shell of Earth. It consists of the crust and the rigid uppermost part of the mantle and is broken up into segments, or plates.
Fracture	The breakage of a rock into two or more pieces.
Elasticity	The ability of rock to be stretched and then return to its original position once the stress has been removed.
Stress	The amount of force being applied to a rock or surface.
Strain	Change in volume, size, or shape that results from stress.
Tectonic Plate	A theory that the lithosphere is broken into segments, or plates, that "float" on the asthenosphere, and the interactions among these plates are associated with earthquakes and volcanic activity and form mid-ocean ridges, trenches, and mountains.
Continental Crust	Crust that contains mostly land, ranging from 15-70 kilometers (9 to 43 miles) thick.
Oceanic Crust	Crust that lives between the ocean, ranging from 5 to 10 (3 to 6 mi) thick,
Friction	The breakage of a rock into two or more pieces.
Rift Valley	The valley formed by a diverging plate boundary.

Created by: user-2013635

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