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The Earth's Structure

Teacher: Panik Lillian Olson
Across
Process that breaks surface rocks into boulders, gravel, sand, and soil
Uppermost layer of the earth
Giant slow-moving sheets of ice
Center of the Earth
Theory that the earth's crust is not an unbroken shell but consist of plates, or huge slabs of rock, that move.
Rock layer about 1,800 miles thick between the core and the crust
Huge sea wave caused by an earth-quake on the ocean floor
Crack in the earth's crust
Down
Violent and sudden movement of the earth's crust
Process of moving weathered material on the earth's surface
Massive land area
Hot melted rock that sometimes flows to the earth's surface in a volcanic eruption