Electromagnet puzzle

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Across
  1. 2. Measurement for current
  2. 4. Pennie dime Quarter
  3. 5. Batterys have high
  4. 10. Magnet with electricity
  5. 14. Oposie of the north
  6. 15. Your car has a big
  7. 16. Opposite of a screw
  8. 18. a hard, silvery-gray, magnetic metal essential for life
  9. 19. amp is a muserment for
  10. 20. Opposite of north
  11. 21. Pennies before 1993 are made of these
  12. 22. is found in your remote
Down
  1. 1. Tiny particles
  2. 3. Our mail is made of this material
  3. 6. They put these on the good guys in the movies
  4. 7. Opposite of south
  5. 8. Opposite of alternator
  6. 9. holds up papers on your fridge
  7. 11. this connects the poles
  8. 12. Actual opposite of south
  9. 13. is a thing with a needle that goes north, south, east, and west
  10. 17. Controls most everything in your house