tectonic Plates Crossword

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Across
  1. 1. a mountain or hill, typically conical, having a crater or vent through which lava, rock fragments, hot vapor, and gas are being or have been erupted from the earth's crust.
  2. 4. secondary seismic waves that cause damage and are felt during an earthquake, characterized by a shaking motion perpendicular to their direction of travel
  3. 9. a field with a region around a magnetic material or a moving electric charge within which the force of magnetism acts.
  4. 11. crust that is rigid, outermost rocky shell of Earth, composed of the crust and the uppermost part of the mantle
  5. 12. the point on the Earth's surface vertically above the focus of an earthquake
  6. 13. crust that is thick and males up earth's landmasses
  7. 15. it is the middle layer of the earth
  8. 16. the rigid, outermost rocky shell of Earth, composed of the crust and the uppermost part of the mantle
  9. 17. the process where a continental plate is stretched and thinned by tensional forces
  10. 19. where two tectonic plates meet
Down
  1. 2. the plate boundary where two tectonic plates collide
  2. 3. the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat
  3. 5. the geological process where one tectonic plate moves under another and sinks into the Earth's mantle
  4. 6. the first and fastest seismic waves to travel through the Earth's interior during an earthquake, causing compression and expansions in the direction of their travel
  5. 7. an elastic wave in the earth produced by an earthquake or other means.
  6. 8. the plate boundary where two tectonic plates move away from each other
  7. 10. a plane that is vast, flat, deep-ocean floor areas that cover a significant portion of the Earth's surface, formed by thick layers of sediment blanketing the underlying oceanic crust
  8. 13. process by which heat or electricity is directly transmitted through a substance when there is a difference of temperature or of electrical potential between adjoining regions, without movement of the material.
  9. 14. a long, narrow ditch.
  10. 18. the plate boundary where tectonic plates slide horizontally past each other