Across
- 5. work in power plants
- 9. food processing machines
- 11. supervises the performance or design laboratories
- 12. makes highways
- 14. makes sure building will stand
- 15. they make medicine and cures
- 17. they make light bulbs
- 19. make parts for steel mills
- 20. makes sure items are good quality
Down
- 1. makes printers and paper making machines
- 2. study DNA
- 3. makes railroads
- 4. oil mining machines
- 6. makes phones and computers
- 7. makes nuclear plants
- 8. makes airplanes and space ships
- 10. make jet engines
- 13. insulate buildings
- 16. makes doctor and surgeons tools
- 18. tunnels and roads