classifications of materials

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Across
  1. 2. metal that contains mainly carbon and iron.
  2. 4. made of two or more metals, can be ferrous or non-ferrous.
  3. 6. comprised of two or more different materials with enhanced properties.
  4. 8. man-made, wood-based composite material.
  5. 10. metal that does not contain iron.
  6. 12. polymer that when heated, undergoes chemical change and the molecules form cross-links.
Down
  1. 1. from broad-leafed, deciduous, slow-growing trees.
  2. 3. polymer that can be deformed and return to original shape at room temperature.
  3. 5. from evergreen, coniferous, fast-growing trees.
  4. 7. material that has been developed through the invention of new or improved processes.
  5. 9. polymer that can be repeatedly reheated and reshaped.
  6. 11. material whose physical properties change in response to a change in the environment.