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Earths Structures

Chaper 2 Vocabulary

TermDefinition
Core Earths innermost structure
seismic waves waves of energy sent through Earths crust when parts of the crust move suddenly
magma melted rock below Earths surface; called lava the surface
fault- block mountains mountains that form along fault lines where blocks of rocks fall, are thrust up, or slide
dome mountains mountains that form when magma pushes up on Earths crust but does not break through
focus point underground where the faulting in an earthquake occurs
plate tectonics theory that giant plates of crust are moving slowly across Earths surface
lithosphere shell formed from Earths solid upper mantle and crust
epicenter point on Earths surface directly above the focus of an earthquake
fold mountains mountains that form where two plates collide and force layers
crust the thin rocky outer layer of Earth that makes up the continents and the ocean floor
mantle the thick layer of Earth's structure just below Earth's crust
earthquake violent shaking of Earth's crust as built-up energy is released
fault crack in Earth's surface along which movement takes place
Created by: ramonaedwards
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