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Earth's Structure

Vocabulary on Earth's Structure

TermDefinition
Sphere a round 3-D object with all points being equal distance from the center
Granite a light colored igneous rock that is found in continental crust
Basalt a dark, dense igneous rock found in oceanic crust
Pressure the force exerted on a surface divided by the area which the force is exerted
Inner Core a dense sphere of solid iron and nickel at the center of the Earth
Outer Core a layer of molten iron and nickel at the center of the Earth
Asthenosphere a soft layer of the mantel on which the lithosphere floats, the plastic layer
Lithosphere a ridged layer made up of the uppermost part of the mantle where it meets the crust
Mantle the layer of hot, solid material between Earth's crust and core
Core made mostly of iron and nickel at the center of the Earth, it is broken down into two parts
Geosphere Earth's entire solid body
Biosphere all living organisms on Earth
Cryosphere frozen water on Earth
Atmosphere layer of gases surrounding the Earth
Gravity is the force that every object exerts on all other objects because of their masses
Density the amount of mass in a given space
Hydrosphere liquid water of Earth
Crust brittle rocky outer layer of the Earth
Magnetosphere the outer part of the magnetic field that protects Earth from the sun's cosmic rays
Landform are topographic features formed by the processes that shaped the Earth's surface
Plain landforms with low relief and low elevation
Plateau landforms with low relief and high elevation
Mountain landforms with high relief and high elevation
Elevation height above sea level
Relief describes the differences in elevation
Created by: Mr. Broschart
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