Science crossword by CL

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Across
  1. 4. A substance that makes a ringing sound when hit
  2. 5. A substance that does not conduct heat or electricity
  3. 7. something that breaks easily with a snap
  4. 9. A substance that can be drawn out into wires
Down
  1. 1. attracted to magnets
  2. 2. To allow electricity or heat to pass through
  3. 3. substances from which onjects you are made
  4. 4. To break into many pieces
  5. 6. A surface that reflects light, such as polished metal
  6. 8. a substance that can be bent or hammered into shapes