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Chapter 8 - Vocabulary
Vocab
15
Science
10th Grade
02/11/2008

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Cards

Term
earthquake
Definition
vibration of earth due to a rapid release of energy
Term
focus
Definition
point where an earthquake occurs
Term

epicenter

Definition
point on earth's surface where an earthquake occurs
Term
fault
Definition
crack in the earth's surface
Term
p-wave
Definition
fastest seismic wave
Term
s-wave
Definition
arrives at a seismic station second
Term
surface wave
Definition
slowest seismic wave that causes damage
Term
siesmograph
Definition
machine used to detect waves
Term
seismogram
Definition
used to determine the magnitude of an earthquake
Term

ritcher scale

Definition
scale based on the amplitude of seismic waves
Term
crust
Definition
0-50 km depth
Term
lithosphere
Definition
encompasses the crust and the upper part of the mantle
Term
asthenosphere
Definition
upper part of the mantle
Term
inner core
Definition
solid nickel and iron
Term
outer core
Definition
liquid nickel and iron
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