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Across 3. material such as epoxy or polyester resin in which thru heat or chemical means it will change shape only once...if reheated it remains the same 8. any of various elastics substances, that stretch rapidly under tension 9. substance of 2 or more elements in fixed proportions 11. elemental chemical substance, that is a good conductor of heat and electricity 13. substance made of 2 or more metals, or one metal and a non-metal intinamtely united usually by fusing 14. any chemical compound containing carbon, with some exceptions, example: carbond dioxide 15. compund of oxygen and another element

Down 1. a material that changes shape or form when heated, then changes again when reheated 2. combination of mateials in which the materials still retain their original properties 4. a substance that cannot be broken down into simpler components by chemical means 5. related to or containing iron 6. compound with carbon and one or more metallic elements 7. a compound of one metallic and a nonmetallic elements thru ionic bonding 10. compund made of nitrogen and a metal 12. project lead the way