pangea shenanigans

12345678
Across
  1. 3. Plate ---------
  2. 6. ___-_____+_____,Big hole in the ocean
Down
  1. 1. Sinking of tectonic plates
  2. 2. Super-continent
  3. 4. Two plates colliding
  4. 5. Two plates passing each other
  5. 7. Movement of continents
  6. 8. Two plates splitting