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plate Tectonics and Layers of the Earth

Lexie Bick
Green Class
5/8/2016
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Across
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A layer of liquids that surrounds Earth's inner core
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Earth's crust and very top of the mantle combined
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a low, gently sloping volcano, built from many lava flows
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The huge supercontinent that once included all of the landmasses on Earth
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a tall and steep volcano made of layers of lava and ash
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One of the slabs of rock that Earth's lithosphere is broken up into
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A boundary where 2 tectonic plates scrape past each other
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A boundary where 2 tectonic plates move apart
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A boundary where 2 tectonic plates push together
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the earth's thickest layer that sits above the outer core and consists of molten rock
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The process where an oceanic tectonic plate sinks under another plate
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long, narrow depression formed at divergent boundaries
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German scientist who proposed Theory of Plate Tectonics and idea of continental drift
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The crust consists mostly basalt
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The layer of hotter, softer rock in the upper mantle, under the lithosphere
Down
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the earth's layer that consists of cool rock on the outside of the earth
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An area of volcanic activity because hot material rises from deep in the mantle
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Seafloor spreading is a process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity
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The crust consists mostly granite
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steep, cone-shaped hill or small mountain, made up of layers of cinder.
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a ball of hot solids at Earth's center
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area around the Pacific Ocean where most of the volcanoes and earthquakes on Earth occur