Earth's Interior and Crust (revised)

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Across
  1. 4. rock that makes up the ocean floor
  2. 5. boundaries that Form where two tectonic plates separate
  3. 9. this is the force that moves the tectonic plates
  4. 11. plastic layer within the mantle
  5. 12. forms near the edge of a continent at an ocean to continent boundary
  6. 18. liquid portion of the core
  7. 21. boundaries that form Where two plates collide
  8. 23. Scientist that researched whether all the continents had always been in the same place on Earth
  9. 24. When the denser plate sinks below the more buoyant plate
Down
  1. 1. Dense oceanic plate slides under Less dense continental plate
  2. 2. Supercontinent that has broken apart over time
  3. 3. Earth’s surface is made of rigid slabs of rock, or plates, that move with respect to each other
  4. 6. basalt is rich in this mineral
  5. 7. the thick middle layer in the solid part of Earth
  6. 8. dense metallic center of Earth
  7. 10. Neither plate is subducted, the Lless dense plate folds and deforms and mountains are formed
  8. 13. The process by which new oceanic crust forms along a mid-ocean ridge and older oceanic crust moves away from the ridge
  9. 14. hypothesis that the continents are in constant motion on the Earth’s surface
  10. 15. brittle, rocky outer layer
  11. 16. Very long mountain ranges in the middle of the oceans
  12. 17. a rigid layer including the crust and the uppermost mantle
  13. 19. solid portion of the core
  14. 20. outer part of the magnetic field that affects the charged particles
  15. 22. boundaries that Forms where two tectonic plates slide past each other