Earth and Space

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Across
  1. 4. Main body in the solar system
  2. 5. The biggest asteroid
  3. 10. Gas to liquid
  4. 11. Fourth state of matter
  5. 13. Used for protection from nuclear disasters
  6. 14. Peak season for typhoons in the Phils
  7. 15. Liquid to solid
  8. 16. Scientists who study earthquakes
  9. 18. First discovered by Rayleigh & Ramsay
  10. 19. Government agency that monitors typhoons
  11. 21. Liquid to gas
Down
  1. 1. Most common component of alloys
  2. 2. Used as an alternative to Argon in bulbs
  3. 3. Monitors earthquakes
  4. 4. Layer that affects the meteors
  5. 6. Used in making television set
  6. 7. Solid to liquid
  7. 8. A rare element with a chemical sym In
  8. 9. Gas to solid
  9. 12. Largest rocky celestial bodies in space
  10. 17. Most widely occurring element on earth
  11. 20. Widely used in cooking equipment