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16 terms

Our Dynamic Earth

STUDY
PLAY
atmosphere
the gaseous envelope surrounding the earth; the air
earthquake
a series of vibrations induced in the earth's crust by the abrupt rupture and rebound of rocks in which elastic strain has been slowly accumulating
hot spot
a stationary location in Earth's mantle where magma melts through a tectonic plate
magma
hot, melted rock below Earth's surface
fault
(geology) a crack in the earth's crust resulting from the displacement of one side with respect to the other
geologist
a person who studies rocks
magnitude
the amount of energy released by an earthquake
focus
the point where an earthquake starts
landform
a physical feature on Earth's surface
lava
hot melted rock that flows from a volcano
crust
the outer layer of the earth
epicenter
the point on Earth's surface directly above an earthquake's focus
volcano
an opening in Earth's crust through which lava may flow
erosion
the process of moving sediment from one place to another
mantle
a nearly melted layer of hot rock below Earth's crust
tsunami
a giant wave caused by an earthquake on the ocean floor