Unit 5 Earth

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Across
  1. 6. giant wave usually caused by earthquake beneath the ocean floor
  2. 7. oceanic plate collides with another plate sliding under because it is denser
  3. 9. source of an earthquake
  4. 10. boundary formed when 2 tectonic plates collide or converge
  5. 11. formation of new oceanic crust as the seafloor is forced apart at mid-ocean ridges by convection currents in the mantle
  6. 12. mountain ranges formed by convergent boundary
  7. 13. extremely deep areas in the ocean caused by subducting plate
  8. 14. boundary that forms when 2 tectonic plates slide by each other in opposite direction
  9. 16. crack anywhere in the earths surface; ground slides in 2 different directions
Down
  1. 1. mountains formed where a one continental plate subducts beneath another
  2. 2. when 2 plates collide or converge, the force of gravity pulls the plate deeper into the mantle
  3. 3. series of volcanoes formed at a subduction zone
  4. 4. weak spot in the middle of a tectonic plate where magma surfaces, forms volcanic islands
  5. 5. when convection currents cause magma to rise to the surface and force 2 plates apart
  6. 8. boundary between 2 tectonic plates that are moving away from each other
  7. 15. deep valley that forms where 2 tectonic plate move apart at a divergent boundary