Module 1

123456789
Across
  1. 4. small, specialized machines or electronic devices
  2. 5. has circular ends and straight sides. In an engine it takes in gas and makes parts move
  3. 6. a complete failure
  4. 9. giving off a lot of light
Down
  1. 1. when something works in a rough or uneven way and makes popping noises
  2. 2. a machine is moving slowly and noisily
  3. 3. engines that make a train go forward
  4. 7. legal documents for an invention so no one else is allowed to make or sell it
  5. 8. a machine that plays recorded music or sound