Plate tectonic review- due tomorrow!

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Across
  1. 4. this scientist first proposed the theory of continental drift.
  2. 5. during convection, less dense material is ___________ and begins to rise.
  3. 6. plates slide past each other at this type of boundary.
  4. 9. these can form when two continental plates converge (or collide).
  5. 11. this feature can be found at a divergent plate boundary.
  6. 12. when plates push together.
  7. 14. where are conduction currents found?
  8. 15. during convection, material _____________, becoming denser, then begins to fall due to gravity.
Down
  1. 1. when plates are pulled apart.
  2. 2. rising material hits the lithosphere and slides, moving __________ with it.
  3. 3. this scientist proposed the radical idea of sea-floor spreading.
  4. 7. this can occur when a continental and oceanic plate converge (or collide).
  5. 8. the name of the supercontinent before continental drift occurred.
  6. 10. rocks closer to the mid ocean ridges are ____________ than those further away.
  7. 13. at a transform boundary, this type of feature can be found.