Plate Tectonics

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Across
  1. 2. is a proposed mechanism for plate motion in plate tectonics
  2. 4. 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. is the portion of motion of a tectonic plate that can be accounted for by its subduction
  4. 6. where 2 plates slide past each other
  5. 8. the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate
Down
  1. 1. a long narrow valley resulting from the subsidence of land between two parallel faults
  2. 3. where two plates are moving toward each other
  3. 7. where two plates are moving away from each other