Spelling L. 14 and 15: IBLE and "CH" to make "K" sound

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Across
  1. 2. of, relating to, or produced by color
  2. 3. a form of government with a monarch (king or queen)
  3. 4. something that is able to be done
  4. 7. the study of human history through the analysis of artifacts
  5. 10. able to be heard
  6. 11. complete disorder and confusion
  7. 12. able to be seen
  8. 14. extremely bad or serious
  9. 15. fit to be eaten as food
  10. 16. an organized group of singers
Down
  1. 1. working or produced by machines
  2. 5. impossible to believe
  3. 6. capable of being divided by another number without a remainder
  4. 8. requiring special knowledge to be understood
  5. 9. handwriting clear enough to read easily
  6. 13. a flowering plant