Plate tectonics

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Across
  1. 4. Caused by friction between 2 plates
  2. 6. Rift valleys, example East African Rift
  3. 7. When two plates slide along side each other
  4. 8. Seafloor spreading, new crust formation,underwater mountain ranges
  5. 10. A type of boundaries (D)
Down
  1. 1. The crust is broken into plates, they float on the atmosphere
  2. 2. Plates have been moving since the foundation of Earth
  3. 3. A type of boundaries (T)
  4. 5. A type of boundaries (C)
  5. 9. Name of someone who has a theory of continental drift