Electoromagnet crossword puzzle

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Across
  1. 3. pressure electricity
  2. 4. A stream/river has one
  3. 6. at the top of the globe
  4. 7. Used in a car or daily household items
  5. 10. Subjected to external magnetic fields
  6. 13. near the top but not at the top
  7. 14. The thing that charges your computer
  8. 15. Used to power things
  9. 16. Used for hanging a picture
  10. 18. S
  11. 20. Unit of measure
  12. 21. N
Down
  1. 1. This nail is very ________
  2. 2. Nail and copper wire
  3. 5. #27 on Periodic Table
  4. 6. Opposite of an alternator
  5. 8. #28 on Periodic Table
  6. 9. runs your house
  7. 11. Nails are made out of this
  8. 12. Shows you North, South, West, East
  9. 17. Statue of Liberty
  10. 19. Sometimes attract and sometimes retract from eachother