Plate Tectonic Boundaries

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Across
  1. 3. - A long narrow hilltop, mountain range, or watershed.
  2. 5. - The sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate.
  3. 7. - A super-continent that incorporated almost all the landmasses on Earth.
  4. 8. - To lift up
  5. 10. - A theory explaining the structure of the earth's crust and many associated phenomena as resulting from the interaction of rigid lithospheric plates.
  6. 12. - Caused by tectonic plates in the Earth's lithosphere moving apart.
  7. 13. - large-scale horizontal movements of continents relative to one another and to the ocean basins during one or more episodes of geologic time.
  8. 16. - A geologic process in which tectonic plates—large slabs of Earth's lithosphere—split apart from each other.
  9. 18. - Plates Move toward each other.
  10. 19. - Boundary between two tectonic plates, where the plates are moving horizontally or vertically in opposite directions.
Down
  1. 1. - Plates slide against each other.
  2. 2. - Sinking of the ground because of underground material movement.
  3. 4. - Plates mover Away from each other.
  4. 6. - A place where there is a long break in the rock that forms the surface of the earth.
  5. 9. - The outermost shell.
  6. 11. - The upper layer of the earth's mantle, below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur.
  7. 14. - A long, narrow ditch.
  8. 15. - Contains Lava
  9. 17. - The rigid outer part of the earth, consisting of the crust and upper mantle.