Earths outer layer; the coolest and least dense layer of Earth. See also core, and mantle.

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

Crust that lies beneath the ocean, ranging from 5 to 10 km (3 to 6 mi) thick.

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

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

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

The distance east or west of the prime meridian in Greenwich, England; measured in degrees. See also latitude.

A process by which new seafloor is formed from the magma rising from Earths diverging oceanic plates.

A plate boundary where two plates move away from each other.

A plate boundary where two plates move toward each other

A plate boundary where two plates move past each other in opposite directions.

The process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle at a convergent plate boundary.

An undersea valley that represents one of the deepest parts of the ocean.

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

The cool, solid outer 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 or size, or shape that results from stress.

A place where pieces of the broken lithosphere meet.. Boundary types include convergent, divergent, and transform.

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

A force that opposes the motion of objects, which are in contact.

The valley formed by a diverging plate boundary.

Earth's outer core is a 2,260 km thick, superheated liquid layer of iron and nickel, situated between the mantle and solid inner core (roughly 2,890 km to 5,150 km deep)

Earth's inner core is a scorching hot, mostly solid ball of iron-nickel alloy located at the planet's center, about 3,000 miles below the surface.

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VOCABULARY

VOCAB

Term	Definition
Crust	Earths outer layer; the coolest and least dense layer of Earth. See also core, and mantle.
Mantle	The layer of Earth beneath the crust. It is about 2,900 km (1,800 mi) thick, and makes up about 83 percent of Earths interior. See also core, and crust.
Oceanic crust	Crust that lies beneath the ocean, ranging from 5 to 10 km (3 to 6 mi) thick.
Oceanic ridge	A mountain-like landform that develops when tectonic plates move apart or separate and a new ocean lithosphere forms.
Oceanic trench	Long, deep formation on the ocean floor that develops where two tectonic plates are moving toward each other, and one is moving under the other.
latitude	The distance north or south of the equator measured in degrees. See also longitude.
longitude	The distance east or west of the prime meridian in Greenwich, England; measured in degrees. See also latitude.
Seafloor spreading	A process by which new seafloor is formed from the magma rising from Earths diverging oceanic plates.
divergent boundary	A plate boundary where two plates move away from each other.
Convergent boundary	A plate boundary where two plates move toward each other
transform boundary	A plate boundary where two plates move past each other in opposite directions.
subduction	The process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle at a convergent plate boundary.
ocean trench	An undersea valley that represents one of the deepest parts of the ocean.
tectonic plate	A piece of Earths crust that, according to plate tectonics, is plate tectonics, is pushed by movement in the asthenosphere.
lithosphere	The cool, solid outer 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 or size, or shape that results from stress.
plate boundary	A place where pieces of the broken lithosphere meet.. Boundary types include convergent, divergent, and transform.
continental crust	Crust that contains mostly land, ranging from 15 to 70 kilometers (9 to 43 miles) thick.
friction	A force that opposes the motion of objects, which are in contact.
rift valley	The valley formed by a diverging plate boundary.
outer core	Earth's outer core is a 2,260 km thick, superheated liquid layer of iron and nickel, situated between the mantle and solid inner core (roughly 2,890 km to 5,150 km deep)
inner core	Earth's inner core is a scorching hot, mostly solid ball of iron-nickel alloy located at the planet's center, about 3,000 miles below the surface.

Created by: Damoni676141

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