Across
- 4. rule
- 9. on time
- 10. to arrive late
- 12. to discuss
- 14. to respect
- 16. physics
- 17. project
- 18. biology
- 20. to answer
Down
- 1. to turn in
- 2. laboratory
- 3. report
- 5. to explain
- 6. history
- 7. algebra
- 8. seat
- 11. locker
- 13. word
- 15. one must
- 19. scissors