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AWSOME Ch. 7 science
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Published on Feb 01, 2016
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1.
ch. 7 science
BY:Daytona Clements
Photo by
brewbooks
2.
Crust
Earths solid rocky surface with continents the ocean floor
Photo by
BlatantWorld.com
3.
original horizontality
idea that many kinds of rocks form flat,horizontal layers
Photo by
jsj1771
4.
continental drift
the idea that a supercontinent split apart into peices
Photo by
catface3
5.
sea floor spreading
idea that that new crust is forming at ridges in the sea floor
Photo by
wockerjabby
6.
magma
hot, molten rock under earthrs surface
Photo by
pierre c. 38
7.
plate tectonics
Earths surface is broke into plates that slide across the mantle
Photo by
gamene
8.
mantle
The layer beneath earths crust
Photo by
Argonne National Laboratory
9.
subduction
A sliding of a denser ocean plate under another plate
Photo by
kqedquest
10.
fault
a huge crack in earths crust at or below the surface
Photo by
NASA Earth Observatory
11.
focus
The point where an earthquake starts as rocks slide past
Photo by
Great Beyond
12.
seismic waves
A vibration that spreads away from the focus
Photo by
Tex Texin
13.
epicenter
The point on earth's surface that is above the focus
Photo by
quapan
14.
aftershock
Shaking of earth's crust after the initial of an earthquake
Photo by
Shazster
15.
seismograph
a device that detects the earth shaking in a earthquake
Photo by
Frankenstein
16.
magnitude
The amount of energy released by an earthquake
Photo by
Stuck in Customs
17.
vent
central opening in a volcanic area in which magma may escape
Photo by
Konabish ~ Greg Bishop
18.
lava
Magma that reaches earth's surface and flows out of a vent
Photo by
gnuckx
19.
crater
A cuplike hollow that forms at the top of a volcano around the vent
20.
hot spot
21.
cinder-cone volcano
22.
composite volcano
23.
geothermal energy
24.
shield volcano
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