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Earth Science

Earth's Changing Surface

contour lines lines on a topographic map that indicate areas with the same elevation, or height above sea level
crust the thin, rocky outer layer of Earth that makes up the continents and the ocean floor
topographic map a map that shows the shapes of surface features and their elevations
erosion the movement of rock pieces, or sediment, from place to place
sediment weathered rock pieces, deposited by wind, water, or ice
weathering the breaking of rocks into pieces or sediment
deposition the dropping or releasing of sediment
core Earths innermost layer
dome mountain forms from magma that pushes up on Earth's crust, but does not break through
earthquake a violent shaking of Earth's crust
epicenter the point on Earth's surface directly above the focus of an earthquake
fault cracks in Earth's crust along which movement may take place
fault-block mountain mountains that form along fault lines where blocks of rock fall, are thrust up, or slide
focus the point beneath Earth's surface where rock breaks under stress and causes an earthquake
fold mountain mountains that form where two plates collide and force layers of rock into folds
fossil physical remains or trace of a plant or animal that lived long ago
lithosphere solid upper mantle and crust combined to form a rigid shell
magma melted rock beneath Earth's surface
mantle layer just below Earth's crust
plate tectonics the idea of giant plates of rock moving slowly across Earth's surface
seismic waves waves sent through Earth's crust during earthquakes
epicenter the point on the Earth's surface directly above the focus of an earthquake
Created by: bethjenkins



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