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plate Tectonics and Layers of the Earth

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