Black dog

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Across
  1. 4. flies into space
  2. 6. one of the continents
  3. 11. changes power voltage
  4. 13. aid helps hear
Down
  1. 1. Well known amusement park
  2. 2. grinding food with teeth
  3. 3. sting what bees do
  4. 5. made a brides best friend
  5. 7. you sit on it
  6. 8. a method to separate paper
  7. 9. world nations union
  8. 10. a type of hair cover
  9. 12. underground train