Inside the earth

Question Answer
Crust
The thin and solid outermost layer of the earth above the mantle
Mantle The layer of rock between the earths crust and core
Core The central part of the earth below the mantle
Lithosphere The solid outer layer of the earth that consists of the crust and the rigid upper part of the mantle
Asthenosphere The soft layer of which the tectonic plates move
Mesosphere
The strong lower part of the mantle between the asthenosphere and the outer core
Tectonic plate A block of lithosphere that consists of the crust and the Rigid outer most part of the mantle
Continental drift The hypothesis that states that the continents once formed a single landmass broke up and drifted to their present locations
Sea floor spreading The process of which new oceanic lithosphere forms as magma rises toward the surface and solidifies
Plate tectonics The theory that explains of large pices of the earths outer most layer called tectonic plates move and Change shape
Convergent boundry The boundry formed by the collision of two lithosphere plates
Divergent boundry The boundry between two tectonic plates that are moving away from each other
Transform boundry The boundry between tectonic plates that are sliding past each other horizontally
Compression Stress that occurs when forces act to squeeze an object
Tension Stress that occurs when forces act to stretch an object
Folding The bending of rock layers do to stress
Fault A break in a body of rock along with one block slides relative to the other
Uplift The rising of regions of the earths crus to higher elevations
Subsidence The sinking of regions of the earths crust to lower elevations

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