Plate Tectonics (Lessons 2.4 & 2.5)

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Across
  1. 5. The pulling of a tectonic plate as its edge subducts deeper into the mantle.
  2. 7. Tectonics Unifying theory for which all other geologic knowledge is derived
  3. 9. Wegener German Scientist who formulated the theory of continental drift
  4. 10. Heat transfer process within the mantle that drives Plate Tectonics.
  5. 13. Stress that pushes rocks in parallel but opposite directions
  6. 14. The process by which oceanic crust sinks under another plate andeventually back into the mantle at a convergent plate boundary.
  7. 15. Boundary at which two plates come together
  8. 17. The process in which new material at a ridge or rift pushes older material aside, moving the tectonic plates away from the ridge
  9. 18. Compositional layer of the earth between the crust and the core
  10. 19. Boundary Region where two plates interact
  11. 22. Process by which new crust is created at mid-ocean ridges
  12. 24. Divergent boundary at which seafloor spreading occurs
Down
  1. 1. Feature created by the convergence of two continental plates
  2. 2. Boundary at which two plates slide past each other
  3. 3. Boundary at which two plates move apart
  4. 4. The bending of rock layers due to stress
  5. 6. A pulling force applied to rock layers.
  6. 8. The soft layer of the mantle on which the lithosphere floats.
  7. 11. Greek word for "all lands"
  8. 12. Drift The theory that the Earth's crust is composed of plates that are in constant motion
  9. 16. A crack in the earth's crust resulting from the displacement of one or both sides; often related to tectonic motion.
  10. 20. The bending, tilting, and breaking of Earth's crust; the change in the shape of rock in response to stress
  11. 21. Stress that squeezes rock until it folds or breaks.
  12. 23. A rigid layer made up of the uppermost part of the mantle and the crust; Earth's outermost physical layer