Blast! Crash! Splash!

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Across
  1. 4. to move smoothly - like a liquid
  2. 6. a piece of stone
  3. 7. grows over time
  4. 10. to make something new
  5. 12. when you know something without being told
  6. 14. the land at the edge of the ocean
  7. 15. something that tells you what to do
  8. 16. a sudden, violent shaking of the earth
  9. 18. a huge body of salt water
  10. 20. one of many sheets of rock that make up the earth's crust
  11. 23. molten rock that is still underground
Down
  1. 1. if it has this, it is strong
  2. 2. the power or strength of something
  3. 3. when a volcano blows apart
  4. 5. a piece of land completely surrounded by water
  5. 8. when one thing pushes against another
  6. 9. tell someone that something bad may happen
  7. 11. to save something or someone
  8. 13. a mountain that can erupt
  9. 17. a vibration through the air or water
  10. 19. the middle part of something
  11. 21. molten rock that comes out of a volcano
  12. 22. a huge, dangerous ocean wave