Is matter around us pure

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Across
  1. 2. Separation of colloidal particles
  2. 3. A mixture of sand and water forms this
  3. 5. A soft metal
  4. 8. A hard nonmetal
  5. 12. A homogeneous mixture
  6. 13. A material that allows elctricity to pass
  7. 14. A metal that is a poor conductor of electricity
Down
  1. 1. A nonmetal that is an electrical conductor
  2. 4. A substance made of one kind of perticles
  3. 6. These are generally good conductors
  4. 7. The components in this are in a fixed ratio
  5. 9. This metal melts on your palm
  6. 10. These are generally soft,brittle and insulators
  7. 11. Caused due to scattering of light rays
  8. 12. an example of metalloid