Plate Tectonics Puzzle 2025

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Across
  1. 9. convection currents here cause plate tectonics
  2. 10. theory that Earth's continents move or drift relative to each other over geologic time
  3. 14. A trace of an ancient organism that has been preserved in rock.
  4. 15. formed at converging continental plates
  5. 17. Magma that reaches Earth's surface
  6. 19. type of crust that is thinner and more dense
  7. 21. formed from diverging continental plates
  8. 22. a chain of islands formed over a hotspot
  9. 23. Sections of the Earth's crust that move due to convection currents in the mantle
  10. 24. extremely deep areas in the ocean that are created by a subducting plate
  11. 25. a volcanically active area of Earth's surface far from a tectonic plate boundary
  12. 26. The shaking that results from the movement of rock beneath Earth's surface.
  13. 29. this island in the chain will be furthest from the hotspot that formed it
  14. 30. a branch of geology concerned with the structure of the crust of a planet and the formation of folds and faults in it
  15. 32. an ancient landmass which separated into present-day continents
  16. 33. faults and volcanoes are most often found here
  17. 36. areas that are below sea level
  18. 38. A plate boundary where two plates move away from each other.
  19. 39. Massive volcano that can produce unbelievably enormous, but rare, eruptions.
  20. 40. this island in the chain will be closest to the hotspot that formed it
Down
  1. 1. a supervolcano formed over a hotspot in the western United States
  2. 2. a supercontinent that existed 300–200 million years ago, made up of all the continents on Earth
  3. 3. A plate boundary where two plates move toward each other.
  4. 4. a principle that states that younger rocks lie above older rocks if the layers have not been disturbed
  5. 5. undersea mountain range formed at diverging oceanic plates
  6. 6. vibrations that travel through Earth carrying the energy released during an earthquake
  7. 7. The boundary between tectonic plates that are sliding past each other horizontally
  8. 8. a geologic process that creates new ocean floor at mid-ocean ridges
  9. 11. A break in the earth's crust
  10. 12. formed where oceanic and continental crust converge
  11. 13. A weak spot in the crust where magma has come to the surface
  12. 16. a current caused by the rising of heated fluid and sinking of cooled fluid
  13. 18. A scale that rates an earthquake's magnitude based on the size of its seismic waves.
  14. 20. well-tested explanation that unifies a broad range of observations
  15. 27. Molten rock beneath the earth's surface
  16. 28. describes the location of hotspots in the mantle
  17. 31. type of crust that is thicker and less dense
  18. 34. One plate going under another plate
  19. 35. how often supervolcanoes erupt
  20. 37. scientist that proposed Earth's continents were once joined together in a single land mass