crossword~avery

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Across
  1. 2. scientific principals for designing and building structures and systems to address specific needs
  2. 5. something that can be changed, controlled, or measured
  3. 7. problems with a design that need impovement
  4. 9. to suggest and discuss ideas for solving a problem
  5. 10. the variable that is observed or measured in a fair test; result
  6. 12. the variable that is changed in a fair test
  7. 13. the process for devising structures or systems to meet specific needs
  8. 14. the use of scientific knowledge to solve problems
  9. 15. a person with scientific principals for designing and building structures and systems that address specific needs
Down
  1. 1. standards by which something is judged
  2. 3. the variable that are kept the same in a fair test
  3. 4. limitation
  4. 6. a series of flexible steps that move an engineer from problem to solution
  5. 8. an early model of a design
  6. 11. an investigation in which one variable is changed and all other variables are kept the same