Plate Tectonics Crossword

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Across
  1. 2. large-scale processes affecting the structure of the earth's crust
  2. 3. one plate slides beneath the other plate
  3. 7. a large circular planet with a lot of living environments
  4. 8. a broad zone forming as the Pacific Plate slides northwestward past the North American Plate microplates small mostly rigid areas of lithosphere
  5. 9. a scientific theory that explains how major landforms are created as a result of Earth's subterranean movements.
Down
  1. 1. plates that are less than 20 million square kilometers in the area but are larger than one million square kilometers
  2. 4. an area on Earth where two or more lithospheric plates collide
  3. 5. the rigid outer part of the earth, consisting of the crust and upper mantle.
  4. 6. a linear feature that exists between two tectonic plates that are moving away from each other