Earth Science Crossword

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Across
  1. 3. Deep underwater valley
  2. 7. Where two plates split apart
  3. 8. When magma breaks through the crust
  4. 9. Where two plates move side to side
  5. 10. of fire Area of high volcanic activity
Down
  1. 1. Where two plates collide
  2. 2. Earth's crust and mantle
  3. 4. Underwater mountain range
  4. 5. Heat transfer causing plate movement
  5. 6. One plate sinking under another