Ben GARLAND :) crossword!!!!!!!!!!!!!!! oh yes

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Across
  1. 5. an early model of a design
  2. 6. something that can be changed
  3. 9. a series of flexible steps that help an engineer from a problem to solution
  4. 10. limitation
  5. 12. problems with a design that need improvement.
  6. 13. an investigation in which one variable is changed.
  7. 14. a person with scientific training who designs structures
  8. 15. the process to make structures to meet specific needs.
Down
  1. 1. to suggest and discuss ideas
  2. 2. a variable that is changed in a fair test
  3. 3. scientific ways to design and build structures
  4. 4. standards by which something is judged
  5. 7. variables the variables that are kept the same in a fair test
  6. 8. the use of scientific knowledge to solve problems
  7. 11. the variable that is observed or measured in a fair test result