Natural science crossword

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Across
  1. 4. transport the electricity
  2. 5. gas turns into a liquid
  3. 6. to separate liquids that have different boiling points in homogeneous mixtures
  4. 8. to separate substances of different density in heterogeneous mixtures
  5. 11. to separate solids from liquids or solids with different size particles, in heterogeneous mixtures
  6. 12. solid turns into a gas
  7. 13. liquid turns into a solid
  8. 14. the same charge
  9. 16. solid turns into a liquid
  10. 17. transform the electricity into another type of energy
  11. 19. controls the flow of electricity by closing or opening the circuit
  12. 20. allow electrical charges to move freely
  13. 21. provides the electricity
  14. 23. different components can be distinguished
Down
  1. 1. gas turns into a solid
  2. 2. liquid turns into a gas
  3. 3. object which attracts other objects made of iron and other magnetic metals
  4. 7. Matter is made up of one or more
  5. 9. when the original matter transforms into other new substances
  6. 10. differents components cannot be distinguished
  7. 15. Contain only one type of component
  8. 16. Contain two or more pure substances
  9. 18. do not allow electrical charges to move
  10. 22. opposite charges
  11. 24. to separate solids from liquids, in homogeneous mixtures