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plate tectonics

QuestionAnswer
Crust the thin and solid outermost layer of the Earth above the mantle
Mantle the layer of rock between the Earth's crust and core
Core the central part of the Earth below the mantle
Lithosphere the solid, outer layer of the Earth that consists of the crust and the rigid upper part of the mantle
Asthenosphere the soft layer of the mantle on which the tectonic plates move
Tectonic Plates pieces of the lithosphere that move around on top of the asthenoshere
Continental Drift the hypothesis that states that the continents once formed a single landmass, broke up, and drifted to their present location
Sea-Floor Spreading the process by which new oceanic lithsphere forms as magma rises toward the surface and solidifies
Plate Tectonics the theory that explains how large pieces of the Earth's outermost layer, called tectonic plates, move and change shape
Convergent Boundary the boundary formed by the collision of two lithospheric plates
Divergent Boundary the boundary between two tectonic plates that are moving away from each other
Transform Boundary the boundary between tectonic plates that are sliding past each other horizontally
P-wave a seismic wave that causes particles of rock to move in back and forth direction
S-wave a seismic wave tghat causes partcles of rock to move in a side-to-side direction
Hot Spot a volcanically active area of Earth's surface far from a tectonic plate boundary
Shield Volconoes built of layers of lava released from repeared nonexplosive eruptions
Cinder Cone Volcanoes made of pyroclastic material usually produced from moderately explosive eruptions
Composite Volcanoes form from explosive eruptions of pyroclastic material followed by quieter flows of lava
Created by: zsquad01
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