Layers Of The Earth

Front 1

lithosphere

Back 1

the solid, outer layer of the earth that consists of the crust and the rigid upper part of the mantle.

Front 2

asthenosphere

Back 2

the soft layer of the mantle on which the tectonic plates move.

Front 3

mesosphere

Back 3

the strong,lower part of the mantle between the asasthenosphere and the outer core

Front 4

crust

Back 4

the thin and solid outermost layer of the earth above the mantle

Front 5

mantle

Back 5

the layer of rock between the earth's crust and core

Front 6

core

Back 6

the central part of the earth below the mantle

Front 7

continental drift

Back 7

the movement of the continents across the earth's surface

Front 8

sea-floor spreading

Back 8

new areas of oceanic crust, magma at mid-ocean ridges which moves outward movement on either side.

Front 9

plate tectonic

Back 9

a theory that explains the structure of the earth's crustrigid lithosphere plates that move slowly over the underlying mantle.

Front 10

convergent boundary

Back 10

tectonic plateslithosphere move toward one another and collide.

Front 11

divergent boundary

Back 11

two tectonic plates that are moving away from each other.

Front 12

transform boundary

Back 12

plates slide sideways past each other and are found on the sea floor

Front 13

compression

Back 13

compressing or being compressed

Front 14

tension

Back 14

stretched tight

Front 15

folding

Back 15

over on itself many times

Front 16

fault

Back 16

being broken into a diagonal way

Front 17

uplift

Back 17

raising something

Front 18

subsidence

Back 18

real physical matter that is a solid