Plate tectonics

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Across
  1. 2. boundary, when two tectonic plates move away from eachother
  2. 5. A rupture in the crust
  3. 7. Wegner, The person who came up with the theory of continental drift.
  4. 8. boundary, When two plates come together
  5. 9. the rigid outer part of the earth, consisting of the crust and upper mantle.
  6. 10. liquid that comes out of a volcano
Down
  1. 1. the upper layer of the earth's mantle, below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur.
  2. 3. The solid, bulky part of the Earth's core.
  3. 4. a sudden and violent shaking of the ground
  4. 6. drift, the gradual movement of the continents across the earth's surface through geological time