Across
- 2. - came from natural material such as tree.
- 4. - obtained from melting of minerals
- 5. - metal with iron.
- 6. - derived from the trunk of a tree.
- 9. - flexible material when exerting tension and pressure.
- 10. - plastics that can remolded upon heating.
- 11. - rubber which is man-made & came from chemical substance.
- 12. - plastics cannot be remolded even upon heating.
Down
- 1. - metal without iron.
- 3. - came from the sap of rubber tree.
- 7. - wood that cuts into different sizes and shapes.
- 8. - synthetic materials that is man-made from crude oil refining