Electromagnet cross word puzzle

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Across
  1. 1. it pulls or contracts
  2. 5. for a light to work you have to a electrical _____
  3. 6. why a compass points north
  4. 8. a ______ is worth 5 cent
  5. 9. you need a ____ pickaxe to mine diamonds
  6. 13. invisible particle that are magnetic
  7. 15. it shocks you
  8. 16. the direction that a compass points
  9. 19. it powers cars
  10. 21. a silvery metal not iron
Down
  1. 2. its also called geodetic north or true north
  2. 3. electronic magnet
  3. 4. you hammer it in to wood
  4. 6. a field that's around magnets
  5. 7. units represented by a V
  6. 10. we used it to wrap around the nails in the lab
  7. 11. a bronze colored metal
  8. 12. its power backs up
  9. 14. the opposite of north
  10. 17. you can plug a gutiar into an A__ to make it louder
  11. 18. it all ways points north
  12. 20. you need _______ for the controller to work