Across
- 2. Glass opening in a wall
- 3. Area for growing plants
- 4. Complete path that an electric current can flow through
- 6. Device for communication
- 8. Large area covered with trees
- 11. Device that detects or measures a physical property
- 13. Structure that spans a physical obstacle
- 14. helmet Protective hard hat worn on construction sites
- 16. Instrument for measuring time
- 17. Enclosed channel for conveying air, cables, or other utilities
- 18. Arid land with little precipitation
- 22. Company or person that supplies goods or services to a project
- 23. Thin material for writing on
- 25. Large celestial body orbiting a star
- 29. Tall machine used for lifting and moving heavy objects
- 30. Land mass surrounded by water
- 31. System of communication used by a country
- 32. Organized examination or checking of work and equipment
Down
- 1. Long system of pipes for transporting fluids over distance
- 5. Study of past events
- 7. Flexible tube for conveying water, air, or other fluids
- 9. Temporary platform used for working at height
- 10. Tool used to grip and turn nuts or bolts
- 11. Systematic study of the structure and behavior of the physical world
- 12. Seal placed between surfaces to prevent leaks
- 15. Ideas, customs, and social behavior of a people
- 19. Threaded metal fastener used with a nut
- 20. Device that starts, stops, or regulates the flow of a fluid
- 21. Instrument for viewing distant objects
- 22. Mountain that erupts with lava
- 24. Process of joining metals by melting them together
- 26. Machine that converts energy into motion
- 27. Device that controls the flow of a fluid
- 28. Instrument showing magnetic north