Different types of engineers

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Across
  1. 6. builds air projects
  2. 7. this engineer manages properties and runs systems
  3. 9. designs and builds electrical things
  4. 10. This engineer supervises, builds, and starts construction projects
  5. 11. invented better ways to recycle
Down
  1. 1. This engineer designs and creates things that relate to nuclear energy
  2. 2. Has invented the wheel
  3. 3. has invented machines for diagnosing medical problems
  4. 4. This engineer creates things related to mechanic
  5. 5. invented the seismograph
  6. 8. this engineer build boats and submarines