Inside The Earth

Front 1

crust

Back 1

the this and solid outermost layer above the mantle

Front 2

mantle

Back 2

the layer of rock between thee earths crust and core

Front 3

core

Back 3

the central part of the earth below the mantle

Front 4

lithosphere the solid outer layer of the earth that consists of the crust the riged upper part of the mantle

Back 4

lithosphere <-

Front 5

asthenosphere

Back 5

the soft layer of mantle on which tectonic plates move

Front 6

mesosphere

Back 6

the strong lower part of the mantle between the asthenosphere and the outer core

Front 7

tectonic plate

Back 7

the block of lithosphere that consist crust and the riged outer most part of the mantle

Front 8

continental drift

Back 8

the hypothesis that states that the continents once formed a single land mass broke up and drifted to there present locations

Front 9

sea floor spreading

Back 9

the process by which new oceanic lithosphere forms magma rises toward the surface and solidifies

Front 10

plate tectonics

Back 10

the theory that explains how large pieces of the earths outer most layer called tectonic plates move and change shape

Front 11

convergent boundary

Back 11

the boundary formed by the collision of two lithosphere plates

Front 12

divergent boundary

Back 12

the boundary between two tectonic plates that are moving away from each other

Front 13

transform boundary

Back 13

the boundary between two tectonic plates that are sliding past each other hoizontal

Front 14

compression

Back 14

stress that occurs when forces act to squeeze a object

Front 15

tention

Back 15

stress that occurs when forces act to stretch an object

Front 16

folding

Back 16

the bending of rock layers due to stress

Front 17

0fault

Back 17

a break in a body of rock along which one block slides relative to another

Front 18

uplift

Back 18

the rising of reigons of the earths crust to higher elevations

Front 19

subsidence

Back 19

the sinking of reigions of the arths crst to lower elavitions