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Science Words
6th grade words- By: Ashley Patterson
Question | Answer |
---|---|
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. |