SU2 U7 writing-message-crossword Labs

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Across
  1. 6. To establish exactly, typically as a result of research or calculation
  2. 9. To measure the heaviness of an object
  3. 13. Never done or known before
  4. 15. The rigid observance of rules of convention or etiquette
  5. 17. The act of giving one thing and receiving another in return
  6. 19. A long and distinct period of history
  7. 21. Concerned with the actual doing or use of something rather than with theory and ideas
Down
  1. 1. To write or create, especially music or poetry
  2. 2. A way or manner in which something occurs or is experienced, expressed, or done
  3. 3. Having or involving several parts, elements, or members
  4. 4. A communication containing information or news
  5. 5. A particular procedure for accomplishing or approaching something
  6. 7. Achieving maximum productivity with minimum wasted effort or expense
  7. 8. An agency or means of doing something; also refers to middle in size
  8. 10. To say something in response to something someone has said
  9. 11. A measure, quantity, or frequency, typically one measured against another
  10. 12. Application of scientific knowledge for practical purposes
  11. 14. To need for a particular purpose
  12. 16. A piece of written, printed, or electronic matter that provides information or evidence
  13. 18. Move forward in a purposeful way
  14. 20. Arguments for and against something