States of matter

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Across
  1. 4. is the magnetic field weakest of strongest at the poles
  2. 6. like poles will do this when brought close to each other
  3. 8. this can be changed to alter the strength of an electromagnet. the units for this factor is Amps
  4. 9. a magnetic material with the symbol Ni
  5. 10. when a magnetic material is placed in a magnetic field it behaves as a magnet. this is called __?__ magnetism
Down
  1. 1. the ends of the magnet are called this
  2. 2. unlike poles will do this when brought close to each other
  3. 3. the only magnetic material not yet mentioned in this crossword
  4. 5. a magnet that has its own magnetic field all the time is a __?__ magnetic
  5. 7. this is a magnetic material that is not an element
  6. 8. other than changing the current and adding an iron core, how else can an electromagnets strength be increased
  7. 11. a magnetic material with the symbol Co