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Plate Tectonics


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Category: Meaning

 
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Created by: gilkey
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platesthe theory that the Earth's lithosphere is divided into tectonic _____ that move around on top of the asthenosphere10true
PangaeaMeaning: all the Earth's land masses joined together were once called this21false
inner coreMeaning: soild, dense ball of iron31false
continental driftMeaning: the theory that continents can drift apart from one another and have done so in the past41false
crustMeaning: The thin, outermost layer of the Earth, or the uppermost part of the lithosphere51false
sea-floor spreadingMeaning: as tectonic plates move away from each other, the sea floor spreads apart and magma rises to fill in the gap71false
outer coreMeaning: the liquid layer of the Earth's core that lies beneath the mantle and surrounds the inner core81false
convectionMeaning: process by which hot material from deep within the Earth rises while cooler material near the surface sinks91false
mesosphereMeaning: the strong, lower part of the mantle between the asthenosphere and the outer core101false
transform boundaryMeaning: when two tectonic plates move away from each other this is the boundary they create between them111false
mantlethe soft layer of the _____ on which pieces of the lithosphere move120true
convergent boundaryMeaning: when two tectonic plates push into one another, this is the boundary where they meet131false
consiststhe outermost, rigid layer of the Earth that _____ of the crust and the rigid upper part of the mantle140true