Layer of the Earth

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Across
  1. 3. drift All contenents had once been joined together in a single landmass
  2. 9. Composed of hard brittle rock
  3. 10. Process by which the ocean floor sinks beneath and deep ocean trench and back to the mantle
  4. 11. boundary. Two plates came together
  5. 14. boundary. Two plates slip past each other
  6. 15. Proposed the theory of continental drift
Down
  1. 1. The super continent
  2. 2. Broken pieces of the crust
  3. 4. boundary. Two plates move apart
  4. 5. Part of the mantle that moves and causes tectonic plates of the crust
  5. 6. ocean rigde. Sea floor spreading at a divergent boundary
  6. 7. Thinnest layer of the Earth
  7. 8. core. Made with liquid metal iron and nickel
  8. 12. Largest layer of the Earth
  9. 13. core. Solid metal due to extreme heat and pressure