TECTONIC PLATE QUIZ

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Across
  1. 4. Currents Movement of heat in the mantle that drives plate motion.
  2. 5. Activity Volcano locations that align with plate boundaries.
  3. 8. Stripes Patterns on the seafloor showing Earth’s magnetic reversals.
  4. 11. Zone Area where one plate sinks beneath another.
  5. 12. Semi-fluid layer beneath the lithosphere where plates “float” and move.
  6. 14. The innermost layer of Earth (inner solid, outer liquid).
  7. 15. Pull Force caused by a sinking dense plate pulling the rest of the plate.
  8. 16. The thick layer beneath the crust, involved in heat transfer and convection.
  9. 17. Boundary Plates move apart, creating new crust (e.g., mid-ocean ridges).
  10. 18. Boundary Plates slide past each other horizontally.
  11. 20. Spreading Process of new oceanic crust forming and moving outward.
Down
  1. 1. Plates Large pieces of the lithosphere that move over the asthenosphere.
  2. 2. Ridge Underwater mountain range where new crust forms.
  3. 3. The rigid outer layer of Earth (crust + upper mantle) that forms tectonic plates.
  4. 6. Distribution Patterns of earthquakes indicating plate boundaries.
  5. 7. Push Force that pushes plates away from mid-ocean ridges.
  6. 9. The outermost layer of Earth where we live.
  7. 10. Drift Theory that continents once joined and have moved apart.
  8. 13. Boundary Plates move toward each other, often causing subduction.
  9. 19. Evidence Similar fossils found on different continents showing past connections.