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Earth's layers

Across
Point of Earth's surface directly above an earthquakes focus
Plastic like layer below the lithosphere
Cycle of heating, rising, cooling, and sinking that is thought to be the force behind plate tectonics
Energy waves that are produced at and travel out ward from the earthquakes focus
Down
Single large land mass made up of all the continents together that broke apart 200 million years ago
Measure of the energy release by an earthquake
Scientist who studies earthquakes and seismic waves
Rigid, outermost layer of earth that is about 62 miles thick, and its composed of crust and part of the upper mantle