Across
- 2. paint
- 7. car parts
- 8. 1950CE-Present
- 9. steel
- 11. 1400-1750AD
- 15. low cost
- 17. finger joint
- 20. liquids
Down
- 1. 2300BC-700BC
- 3. fire, stone, tools and weapons
- 4. carbon-fiber bicycle
- 5. process of producing goods or products
- 6. created to obtain materials that have characteristics that are mid way between those of both natural and synthetic materials
- 10. small batches
- 12. 1750-1950AD
- 13. expensive
- 14. product or physical matter that comes from plants, animals
- 16. designed materials that do not already exist
- 18. 450–1400AD
- 19. 700BC–450AD