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Vocabulary



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        N         F O S S I L       S   H     O
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        L       C O N T I N E N T A L D R I F T
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                  S E I S M I C W A V E S     C
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  F           E   D E E P O C E A N T R E N C H
  A               I     R   R         A   N    
S U B D U C T I O N     E   U         I   E    
  L               G     S   S         T   R    
  T                     S   T         E   C    
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Across Down
4 An undersea moutin chain where the new ocean floor is produced; a divergent plate boudary
6 A trace of an ancient organism that has been preserved in rock
8 The hypothesis hat the cntinents slowly move acrss Earth's surface
9 A devicr that determines the distance of aun underwater by recording eches of sound waves
10 Vibrations that travel through earh's carriyind the energy release during an earthquake
12 The soft layer of the mantle on which te lithosphere floats
16 A deep vally alng the ocean floor beneath which oceanic crust slowly sinks toward the mantle
19 The process by which oceanic crus sinks beneath deep ocean trench and back into e mantle at a cnvergent plat boundary
1 Te name of the single landmass that broke apart 20 milion years ago and gaverise today's continents
2 A rigid layer made up of the uppemost part of the mantle and the crust
3 The process by which molten material as new oceanic crust to the ocen floor
4 Te layer of hot , solid material between Easth's crust and core
5 A dark, dense, igneous rock with fin texture, found in oceanic crust
7 A layer or molten iron and nickel that surrounds the inner core of Earth
11 A section if he lithosphere that slowly moves over the aheosphere, carrying pieced of cntinenl and oceaniccrust
13 A usually light colore ineous rock that is found in continental crust
14 A dense sphere of solid iron and nickel at the center of the Earth
15 A break inEarth's crust where massesof rock slip past each other
17 Th force exerted on a surface divided by the area over which the force excerted
18 The layer of rock that forms Earth's outer surface
 
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