Answers

2016-01-22T10:01:25+08:00
1. Gas
2. Rubber
3. Oil
4. Asphalt
5. Fiber Glass
6. Porcelain
7. Ceramic
8. Quartz
9. Dry Cotton
10. Dry Wood
11. Dry Paper
12. Plastic
13. Air
14. Diamond
15. Pure Water
16. Styrofoam
17. Silk
18. Wax
19. Fur
20. Wool
Hope my answer can help!
Cheers!
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