Across
- 4. anti lock brakes for cars
- 5. X-rays machines to view bodies
- 7. highways and flow of traffic
- 8. animal habitats
- 13. tools for doctors
- 14. and Sewer-
- 16. medicine suitable for animals
- 17. houses and buildings
- 18. components for railroads
- 20. paper making machines
- 21. the stress point of materials
Down
- 1. -
- 2. water quality and sewage treatment
- 3. lighting manufacturing
- 6. for making sure your utilities are available
- 9. sure buildings is structurally strong
- 10. and builds tunnels and bridges
- 11. planes and air crafts
- 12. jet engines
- 15. and study DNA
- 19. with movements humans make