Magnets and more!

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Across
  1. 2. Really good at crossword puzzles
  2. 4. One big magnet
  3. 5. Mr science man
  4. 8. Negative charge
  5. 9. Pole The most downwards point on earth
Down
  1. 1. flows in currents
  2. 3. Positive charge
  3. 6. Attracts Iron, Nickel, and Cobalt
  4. 7. Pole The most upwards point of earth