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waves traveling through the Earth from E.Q.'s
Seismic Waves
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Amount of force in an area
Pressure
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Outer-most layer of the earth
Crust
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type of rock in the Oceanic crust
Basalt
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type of rock in continental crust
Granite
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has convection currents and moves tectonic plates
Mantle
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The hard part of the earth
Lithosphere
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lower, soft part of the mantle
Asthenosphere
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hot, liquid iron and nickel layer ; causes magnetic field
Outer core
-
solid most-inner layer ; very dense
Inner Core
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heat transfer through space
Radiation
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heat transfer through touch
Conduction
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heat transfer of fluid ; convection currents
Convection
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amount of stuff in a container (mass, volume)
Density
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the flow that transfers heated fluids
Convection Currents
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continents slowly move over the earth's surface
Continental Drift
-
supercontinent ; "all lands"
Pangea
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trace of an organism preserved in rock
Fossil
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plate boundaries under the oceans
Mid-Ocean Ridge
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Sound waves that bounce off hard objects underwater and are recorded
Sonar
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new material is added to ocean floor at divergent ridges
Sea-Floor Spreading
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deep area where OC is subducted under CC
Deep-Ocean Trench
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Oceanic Crust drifting under Continental
Subduction
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Broken pieces of the lithosphere
Plate
-
well tested concept that explains observations
Scientific Theory
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pieces of lithosphere in constant motion
Plate Tectonics
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breaks in Earth's crust where rocks slip past
Fault
-
two plates that move away from each other
Divergent Boundaries
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trench along a divergent boundary
Rift Valley
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two plates that move towards each other
Convergent Boundary
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two plates slip past each other, going in opposite directions
Transform Boundary
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