Challenge it

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Across
  1. 4. the process an engineer uses
  2. 5. Trying out something
  3. 6. A test build
  4. 8. Looking at information about a
  5. 10. The answer to a problems
Down
  1. 1. Figuring out something
  2. 2. thinking of ideas
  3. 3. someone who builds something
  4. 7. blueprint for a invention
  5. 9. making something