Plate Tectonics Classroom

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Across
  1. 3. theory that states that the earth's outer layer, or lithosphere, is broken into several large slabs called plates.
  2. 4. the only liquid layer of the earth
  3. 6. Greek word for all the earth
Down
  1. 1. An extremely hot, solid sphere of mostly iron and nickel at the center of the earth.
  2. 2. this dense layer made of hot, semisolid rock
  3. 5. Hard and rigid, it's the earth's outermost and thinnest layer