Early Inventions

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Across
  1. 3. a thought or suggestion
  2. 6. someone who makes goods to sell
  3. 10. all the knowledge and equipment used in science
  4. 11. noticeable or important
  5. 13. made or invented
  6. 14. exactly the same as something else
  7. 15. the purpose of something
Down
  1. 1. a window at the front of a car or other vehicle
  2. 2. able to withstand fire or great heat
  3. 4. wearing shoes with sharp blades atteched to move smoothly on ice
  4. 5. a serious or dangerous situation
  5. 7. placing patients in a sleeplike state during surgery
  6. 8. something new that is made for the first time
  7. 9. a thing made for a special purpose
  8. 12. a document that says you have the right to make or sell an invention