Plate Boundary Crossword Puzzle

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Across
  1. 2. When oceanic crust is pushed under the continental crust in a convergent plate boundary
  2. 6. The theory that the Earth's lithosphere is divided into tectonic plates.
  3. 7. The boundary between two colliding tectonic plates.
Down
  1. 1. a rigid layer of solid rock cracked into pieces called plates.
  2. 3. The boundary between two tectonic plates that are moving away from each other.
  3. 4. The boundary between two tectonic plates that are sliding past each other horizontally.
  4. 5. The process by which new oceanic crust is created at ridges as older materials are pulled away from the ridge.