{Seth Rose} It's on the chart

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