General Knowledge

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Across
  1. 1. Largest ocean
  2. 4. Hardest naturally occurring mineral
  3. 7. Board game with kings and queens
  4. 9. Government in which citizens vote
  5. 10. Official money of a country
  6. 12. Largest hot desert
  7. 13. Gas humans breathe
  8. 14. Instrument used to find direction
  9. 16. Scientist who formulated the laws of motion
  10. 18. Closest planet to the Sun
  11. 19. Highest mountain on Earth
  12. 20. Process plants use to make food
  13. 22. Planet famous for its rings
  14. 24. Largest planet in the Solar System
  15. 26. International multi-sport event
  16. 27. White marble monument in India
  17. 28. Scientist known for the theory of relativity
Down
  1. 2. Smallest unit of an element
  2. 3. System for organizing days and months
  3. 4. Molecule carrying genetic information
  4. 5. Classical composer from Austria
  5. 6. Imaginary line dividing Earth into two hemispheres
  6. 8. English playwright who wrote Hamlet
  7. 11. Arc of colors formed by sunlight and rain
  8. 14. Famous ancient amphitheater in Rome
  9. 15. Ancient Egyptian structure
  10. 17. Force that attracts objects toward Earth
  11. 21. Powerful tropical storm
  12. 23. One of the world's longest rivers
  13. 25. Mountain that erupts lava