Across
- 2. The ease with which a material will ignite or burn.
- 5. Material that has electrical conductivity between an insulator and conductor.
- 7. Materials containing many repeating molecules.
- 8. Elastic polymers that can stretch, but return to their original shape when released.
- 10. Material composed of atoms with only one valence electron that is loosely bound and can become easily free to conduct electrical current.
- 12. The study of processes and designs that are in nature. The characteristics of nature are then imitated in new materials.
- 14. The grouping, or bonding, of two or more atoms.
- 15. The ability of a material to be stretched or lengthened into wire before failure occurs.
Down
- 1. Substances that cannot be broken down any further through chemical reactions.
- 3. Materials with these characteristics: strong electrical and thermal conductivity; solid at normal temperatures; shiny, hard, malleable, and ductile; difficult to burn; high density.
- 4. A material that does not conduct electrical current under typical conditions, due to valence electrons that are tightly bound to an atom.
- 6. Materials comprised of multiple materials with different chemical or physical properties.
- 9. A measurement describing the resistance of a material through indentation, scratch, and rebound tests.
- 11. A class of materials characterized by high brittleness, poor electrical and thermal conductivity, very high melting points, and nonflammability.
- 13. A metal comprised of two or more metallic elements.