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Science Words

6th grade words- By: Ashley Patterson

Stress The forces that push and pull on the Earths crust causes its deformation.
Crust The surface layer of the Earth.
Deformation In geology, any change in the ordinal shape or volume of rocks.
Compression The type of stress that squeezes rocks together.
Tension The type of stress that pulls rocks apart.
Shearing The type of stress that pushes the rocks of the crust in two opposite, horizontal directions.
Facture In minerals, the way a minerals that does not cleave breaks along a rough or jagged surface.
Fault A break or crack along which rocks move.
Hanging Wall The block of rock above a fault.
Foot Wall The bock of rock below a fault
Normal Fault A fault in which the hanging wall moves down relative to the foot wall
Reverse Fault A fault in which the hanging wall moved up relative to the foot wall.
Thrust Fault A reverse fault in which the hanging wall slides over the foot water
Lateral Fault A fault along which the blocks move horizontally passed each other.
Fault-Black Mountains A mountain formed by blocks of rock uplifted from normal faults.
Rift Vally A valley formed when the block of land between two normal faults slides downwards.
Fold A blend in rock.
Anticline An upward fold in rock.
Syncline A downwards fold in rock.
Plateau A large area of flat land that is rises above sea level and contains of horizontal rock layers.
Dome A rises area shaped roughly like the top hafe of a sphere, often formed by magma pushing upward on the rock layer above it.
Mantle The layer of the Earth that extends from the bottom of the crust to the core.
Isostasy The balancing of the downward force of the crust and the upward force of the mantle.
Created by: Ashley.P