Across
- 4. bottled water
- 6. carbon fiber
- 7. piping
- 10. development of manufacturing and transportation
- 13. liquids
- 14. wood
- 16. stone tools
- 18. heart valve
Down
- 1. wool socks
- 2. steel
- 3. consumable goods
- 5. car
- 8. cheeseburger
- 9. 2300BC-700BC
- 10. the processing and exchange of information
- 11. plastic
- 12. rebirth
- 15. 450-1400AD
- 17. plastic
- 19. use of steel and iron