Vocabulary Crossword Puzzle

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Across
  1. 4. train engine
  2. 7. Long ago people played music on a _________.
  3. 10. To go beyond the limits.
  4. 11. move slowly and noisily
  5. 13. To be very good at it.
  6. 14. Scientists protect their inventions with ______ so no one can copy them.
Down
  1. 1. To supply crops with water through a system.
  2. 2. An antonym of unknown
  3. 3. gives off a lot of light
  4. 5. I have circular ends and straight sides.
  5. 6. Feeling embarrass after my car engine _________ through the town.
  6. 8. To think highly of someone.
  7. 9. small specialized machines or electronic devices
  8. 12. a synonym for the word failure.