Plate Tectonics, Earthquakes, and Volcanoes- TEST
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Asthenosphere | plastic like layer of Earth where the lithospheric plates float & move
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| Cinder Cone Volcano | steep-sided, lossely packed volcano formed when tephra falls to ground
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| Composite Volcano | volcano built by alternating explosive and quiet eruptions that produce layers of tephra & lava
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| Continental Drift | Wegner's hypothesis that all continents were once connected in a single large landmass the broke apart about 200 million years ago and drifted slowly to their current positions
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| Convection Current | current in Earth's mantle that transfers heat in Earth's interior and is the driving force for plate tectonics
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| Crater | steep-walled depression around a volcano's vent
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| Earthquake | vibrations produced when rock breaks along a fault
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| Epicenter | point on Earth's surface directly above an earthquake's focus
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| Hot Spot | result of an unusually hot area at the boundary between Earth's mantle and core that forms volcanoes when melted rock is forced upward and breaks through the crust
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| Lithosphere | rigid layer of Earth about 100 km thick, made of the crust and a part of the upper mantle
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| Pangea | large, ancient landmass that was composed of all the continents joined together
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| Plate | a large section of Earth's oceanic crust and upper mantle are broken into plates that float and move around on a plasticlike layer of the mantle
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| Plate Tectonics | theory that Earth's crust and upper mantle are broken into plates that float and move around on a plasticlilke layer of the mantle
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| Primary Waves | seismic waves that move rock particles back-and-forth in the same direction that the wave travles
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| Seafloor Spreading | Hess's theory that new seafloor is formed when magma is forced upward toward the surface at a mid-ocean ridge
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| Secondary Waves | seismic waves that move rock particles at right angles to the direction of the wave
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| Seismograph | instrument used to register earthquake waves and record the time that each arrived
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| Sheild Volcano | broad, gently sloping volcano formed by quiet eruptions of basaltic lava
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| Surface Waves | seismic waves that move rock particles up-and-down in a backward rolling motion and side-to-side in a swaying motion
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| Tephra | Bits of rock or solidified lava dropped from the air during an explosive volcanic eruption
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| Vent | opening where magma is forced up and flows out onto Earth's surface as lava, forming a volcano
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| Volcano | opening in Earth's surface that erupts sulfurous gases, ash, and lava
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Or sort by any of the columns using the down arrow next to any column heading.
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Created by:
Elaine Miller
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