Crossword Puzzle (1)

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Across
  1. 1. to produce flowers
  2. 4. the fifith largest planet of our solar system
  3. 6. the state of being steady
  4. 8. anything that is added to something else
  5. 9. a soft and light part of a bird
  6. 11. a warm-blooded animal
Down
  1. 2. is a hard, strong metal
  2. 3. available only to certain people
  3. 5. containing facts
  4. 7. to pay someone to do a job
  5. 9. a wide area of open land
  6. 10. a subject to discuss