Periodic table: compounds and elements

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Across
  1. 3. long cables with a silica core
  2. 8. evaporation of solvent from a solution to leave a solid substance
  3. 10. helix structure of a human DNA molecule
  4. 11. liquids that can be mixed
  5. 12. change of state from solid to gas
  6. 15. mixture of metals and non metals
  7. 17. elements with singular atoms
  8. 18. first chemical explosive
  9. 19. electrical switch in computers
Down
  1. 1. able to be hamered or shaped
  2. 2. two liquid or gasses mix
  3. 4. easily crumbled or shattered
  4. 5. a microscope that can see atoms
  5. 6. represents solid, liquid and gas
  6. 7. gas is cooled to form liquid
  7. 9. increase in size
  8. 13. basic particles that make up everything
  9. 14. form of sugar produced in photosynthesis
  10. 16. substances with two identical molecules