Magical crossword!

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Across
  1. 3. The name of a famous wizard
  2. 7. a stick for wizards
  3. 9. Wizards use it to fly
  4. 10. The name of a house
  5. 12. The study of stars and planets
Down
  1. 1. The name of a house
  2. 2. a class to learn spells
  3. 4. The study of plants
  4. 5. A big bird liked by wizards
  5. 6. A famous magical school
  6. 8. the place where pupils sleep
  7. 11. You can drink it