Secret Santa

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Across
  1. 1. "_____ Christmas!"
  2. 6. "Happy _____!"
  3. 7. one of the subjects in the science department
Down
  1. 2. he teaches in the _____, not the academic building
  2. 3. what Santa says.
  3. 4. your secret Santa (extra hint: we have daughters almost the same age!)
  4. 5. your secret Santa is not a woman but a _____