Plate Tectonics

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Across
  1. 3. When oceanic plate subducts under continental plate
  2. 5. One of the two original continents that Pangaea split into.
  3. 6. Innermost layer of Earth.
  4. 7. Waves that are sent out and are timed coming back to map out objects
  5. 9. Longest mountain chain
  6. 12. The valley between two diverging plates
  7. 14. Chunks of the Earth that float on the lithosphere.
  8. 17. The other of the two continents that Pangaea split into.
  9. 18. It means “millions of years ago”
  10. 20. When two plates float toward each other.
  11. 23. Melted rock
  12. 24. Outer layer of Earth.
  13. 25. Fault the runs through California.
  14. 26. Layer of molten metal that covers the inner core.
  15. 28. Crust that makes up the continents.
  16. 30. smaller, less important plates
  17. 32. Thickest layer of Earth.
  18. 33. The seven major land masses on the planet Earth.
  19. 34. Where hot rocks rise, and cool rocks fall creating a flowing circle
  20. 35. First living organism
  21. 36. When a divergent boundary occurs and the magma helps create a new part of the plate.
  22. 37. String of mountains
  23. 38. Produced by the inner core spinning within the outer core.
  24. 40. Molten rock.
  25. 41. Created theory of continental drift
  26. 43. Immense forces that are sent up through the Earth.
  27. 44. Solid ball of iron in the center of the Earth.
Down
  1. 1. Earth’s supercontinent from over 200 MYA.
  2. 2. Amount of force pressing on an object.
  3. 4. Deepest trench in the world.
  4. 5. One who studies geology.
  5. 8. When two plates float apart.
  6. 10. Upper layer of the mantle.
  7. 11. Where lava erupts of out the earth
  8. 13. Crust located under the ocean.
  9. 15. Lower layer of the mantle.
  10. 16. The study of tectonic plates.
  11. 19. Forces that destroy landmasses.
  12. 20. Forces that build landmasses.
  13. 21. The study of the planet Earth.
  14. 22. When two plates grind against each other.
  15. 23. The landmass that is created when two plates come together along a Upper
  16. 27. When one plate slides underneath the other.
  17. 28. The theory of how the continents got where they are today.
  18. 29. Vibrations that travel through the Earth.
  19. 30. Where geology was first founded
  20. 31. Larger, more important plate
  21. 39. Magma that has come out of the earth
  22. 42. A place where move relative to each other