Plate Tectonics Review Crossword

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Across
  1. 2. Sudden shaking caused when two plates slide past each other, often at transform boundaries.
  2. 4. Tectonics, The theory that the Earth is broken into plates that move due to convection currents in the mantle.
  3. 5. Volcano, A volcano that is not currently active but could erupt again.
  4. 13. Boundary, Boundary where two tectonic plates move away from each other.
  5. 14. Basin, Low areas on Earth that contain oceans.
  6. 17. Andreas Fault, A famous example of a transform boundary.
  7. 19. Landform created when two continental plates collide.
  8. 20. Crust, Earth's crust that forms the continents.
  9. 21. Deep valley formed at a convergent boundary where one plate subducts.
  10. 22. Current, Rising of heated (less dense) mantle material and sinking of cooled (denser) material that drives plate movement.
Down
  1. 1. The rigid outer layer of the Earth made of crust and upper mantle.
  2. 3. Spot, A location where magma rises through the mantle to create volcanoes, not at plate boundaries.
  3. 4. A supercontinent that existed millions of years ago before plate movement separated it.
  4. 6. Property involving magnetic fields (appears in distractors).
  5. 7. Boundary, Boundary formed by the collision of two plates.
  6. 8. Vibrations that travel through the Earth during earthquakes (mentioned in distractors).
  7. 9. Spreading, Process where new oceanic crust forms as magma rises and solidifies at mid-ocean ridges.
  8. 10. When an ocean plate moves under a continental plate, often creating volcanoes.
  9. 11. Boundary, Boundary where tectonic plates slide past each other horizontally.
  10. 12. The layer of Earth between the crust and core where convection currents occur.
  11. 15. Drift, Early theory that continents move across Earth’s surface.
  12. 16. Ridge, Area where two ocean plates move apart, creating new crust at a divergent boundary.
  13. 18. Valley, Valley formed at divergent boundaries when plates pull apart.
  14. 23. A mountain or opening that forms when magma reaches the surface (connected to subduction zones).