Geology

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Across
  1. 2. an idea
  2. 3. sudden explosion
  3. 7. average weather
  4. 9. heavy dense rock
  5. 10. red-hot melted rock
Down
  1. 1. scientist who study geology
  2. 4. tectonics
  3. 5. crack over Earth that erupts lava
  4. 6. preserved remains
  5. 8. melted rock in Earth's mantle