Magnet Crossword

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Across
  1. 2. magnetic force is __________, we can not see it.
  2. 4. an object which produces a magnetic force
  3. 6. this magnetic metal shares the name of a coin
Down
  1. 1. this magnetic metal is also the name of a shade of blue
  2. 3. this magnetic metal has a superhero named after it
  3. 5. magnetic force is able to ______ certain metals
  4. 6. are all metals attracted to magnets?