Across
- 2. WEAPONS – Tools used by soldiers in war
- 4. – The condition of being well
- 5. – The first Roman newspaper
- 7. – A large temple in Mesopotamia
- 8. CLOCK – An Egyptian clock that uses water
- 10. – Roman buildings with large spaces
- 12. – Sharing information with others
- 13. – Clothing used to protect soldiers
- 14. – A Chinese invention used in weapons and fireworks
- 16. – Protection from danger
- 18. – Using tools to solve problems
- 20. WALL – A long wall built in China for protection
- 23. PRODUCTION – Making many products at once
- 27. – A tool to see very small objects
- 29. – Building machines and structures
- 31. REFINERY – A place where oil is refined
- 32. – Walls built to stop floods
- 34. – Boats used for travel and trade
- 35. KEEPING – Writing information for the future
- 37. – A system that brings water to farms
- 38. – A tool to see far objects
Down
- 1. PRESS – A machine for printing books and papers
- 3. – A process of heating milk to make it safe
- 6. – A Sumerian writing system using wedge-shaped symbols
- 9. – A machine used to grind grain
- 11. – Study of the natural world
- 15. – An ancient Sumerian city
- 17. CLOCK – A Greek device used to tell time
- 18. – A Chinese drink made from dried leaves
- 19. – Finding direction when traveling
- 21. – An Egyptian paper made from plants
- 22. – A Sumerian invention for easier transport and work
- 24. – Hair covering worn in ancient Egypt
- 25. BOOKS – Roman books called codex
- 26. – An Egyptian writing system using pictures
- 28. – A liquid used for writing symbols and words
- 30. – A device used to talk over distance
- 33. – A Chinese fabric desired by many empires
- 35. – Paths made for transportation
- 36. – Products used for beauty and hygiene