Alex Crossword

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Across
  1. 3. It's under the crust
  2. 4. Upper part of the mantel
  3. 6. Thinnest layer of the earth
  4. 8. One plate moves under another
  5. 9. Measures size of an earthquake
  6. 10. centre of the earth
Down
  1. 1. Molten rock and below Lithosphere
  2. 2. Two tectonic plates move away from each other
  3. 5. Magma breaks through crust making volcanos
  4. 7. Really hot liquid