CROSSWORD C3

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Across
  1. 4. three dimensional square
  2. 7. Egyptian ancient wonder
  3. 9. twisting column of air
  4. 10. film on someone's life
  5. 12. shape with eight sides
  6. 13. something that is much smaller than the usual size for its type or species
  7. 15. "starry night" artist
  8. 17. ratio of a circle's circumference to its diameter
  9. 18. first European to reach India by sea
Down
  1. 1. capital of Brazil
  2. 2. largest continent
  3. 3. state of calmness
  4. 4. capital of Australia
  5. 5. film featuring sword fights and castles
  6. 6. study of plants
  7. 8. study of heart and its diseases
  8. 11. keyboard with black and white keys
  9. 14. unit of electrical resistance
  10. 16. part of the plant where photosynthesis occurs
  11. 17. main character in a story