Como Science Department

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Across
  1. 4. The subject Mrs Bradley used to teach
  2. 9. The colourless odourless gas that puts fires out
  3. 11. In words, the number of ground floor classrooms in A-block
  4. 12. Mr Foster's first name
  5. 13. The positive particle inside an atom
  6. 15. The type of cell division used for growth and repair
  7. 16. The youngest teacher in the Science department
  8. 17. The gas we breathe to survive
  9. 18. The ATAR subject Mr Sahely teaches
Down
  1. 1. The female staff member who works in student services
  2. 2. Mr Mercer's first name
  3. 3. Having two copies of the same allele
  4. 5. The surname of the teacher who teaches in A3
  5. 6. Having different copies of an allele
  6. 7. The Science teacher who has a dog as his computer background
  7. 8. The name of the street at the front of the school
  8. 10. Deoxyribonucleic acid
  9. 14. In words, what number classroom is the science office?