School stuff (German edition!)

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Across
  1. 4. ruler
  2. 5. economics
  3. 6. physics
  4. 8. colored-pencil
  5. 10. biology
  6. 12. pencil-case
  7. 14. schedule
  8. 16. ethics
  9. 17. break
  10. 19. geography
Down
  1. 1. politics
  2. 2. history
  3. 3. binder
  4. 7. computer-science
  5. 8. notebook
  6. 9. social-studies
  7. 11. school-supplies
  8. 13. math
  9. 15. chemistry
  10. 18. art