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20 terms

Earth Science Quiz #1

STUDY
PLAY
Lithosphere
the earth's rigid crust and top of the mantle that sits on the athenosphere
Athenosphere
the earth's softer rock that sits below the lithosphere and convects
Convection
a process where heating from below and cooling from above cause a liquid rise and fall in a circular motion
Density
the amount of matter in a certain amount of space (mass per unit volume)
Inner Core
the earth's layer consisting of a ball of hot solid metals at the center of the earth
Outer Core
the earth's layer consisting of liquid metals that surrounds the inner core
Mantle
the earth's thickest layer that sits above the outer core and consists of molten rock
Crust
the earth's layer that consists of cool rock on the outside of the earth
Tectonic Plates
broken up pieces of the lithosphere that move due to convection
Hot Spots
areas where heated rock rises in thin columns to form a volcano that can rise above the surface of the water (Ex. Hawaii)
Mid-Ocean Ridge
huge underwater mountain ranges where tectonic plates move away from each other
Plate Tectonic Theory
the theory that states the Earth's lithosphere is made up of huge plates that move over the surface of the earth
Convergent Boundary
a boundary that occurs where tectonic plates are pushing together
Divergent Boundary
a boundary that occurs where tectonic plates are moving apart
Transform Boundary
a boundary that occurs where tectonic plates are sliding past one another
Continental Crust
thicker, less dense crust that goes on top of oceanic crust when they converge
Oceanic Crust
thinner, more dense crust that goes under continental cruse when they converge
Subduction
one tectonic plate going under another tectonic plate (typically oceanic crust going under continental crust)
Continental-Continental Collision
two continental plates collide, forming mountains
Continental-Oceanic Collision
an oceanic plate collides with a continental plate causing the subduction to the oceanic plate