Science (use dash for space)

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Across
  1. 4. the moving heat used to move the tectonic plates
  2. 5. a type of tectonic plate that rub against each other
  3. 6. one plate that goes under/over
  4. 7. helps makes new layers of crusts
Down
  1. 1. plates that pull apart
  2. 2. plates that move together
  3. 3. and opening caused by divergent plates