Surface Deep Crossword

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Across
  1. 2. Soft hot rock
  2. 6. when tectonic plates rub together?
  3. 7. formed by hot and cold air
  4. 8. What throws out ash and lava?
  5. 9. Floating rock
  6. 10. Last stage of the water cycle
Down
  1. 1. A stony slippery dip
  2. 3. When rocks are worn away
  3. 4. Could clapping
  4. 5. What do we stand on?