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Science, Quiz

Science Quiz

QuestionAnswer
What so we call the smaller earthquakes or tremors that often follow a major earthquake at frequent intervals Aftershocks
What does the elastic rebound theory state Rocks on either side of a fault spring back to a position of little or no strain at the moment of an eearthquake, triggering vibrations in the earth's crust
What is the focus of an earthquake The point underground at which the earthquake begins
What is the epicenter of an earthquake The point on the earth's surface directly above the focus of an earthquake
Which type of earthquake waves travel fastest P Waves
In what sequence do different types of earthquake waves arrive at a seismograph P waves, then S waves
What do we call the earth's outer layer of rock Crust
What is the most abundant element in the earth's crust Oxygen
What is the second most abundant element Silicon
What is the third most abundant element Aluminum
What do we call the middle layer of the earth's interior Mantle
What is the name of the boundary between the crust and mantle Moho
What do we call the central portion of the earth Core
What is the name of the boundary between the mantle and the core Gutenberg Discontinuity
What do we call the theory that the earth's crust is composed of several plates that "float" like refts on the plastic rock of the upper mantle Plate tectonics
What are the three types of faults Normal fault, strike-slip fault, thrust fault
What type of geologic structure is formed by the bending or buckling of rocks under great force Fold
What do we call an archlike fold produced when rocks buckle upward during folding Anticline
What type of mountains are thought to have been formed when the rocks along one side of a fault were forced upward while the rocks on the other side sank Fault-block mountains
What type of mountains are thought to have been formed when the edges of two adjacent rock layers were pushed violently together, causing the layers to buckle like a wrinkled rug Folded mountains
Created by: Snyderpartyof7
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