Solve the puzzle, find clues, and win 100 SAR in cash!

12345678910111213141516171819
Across
  1. 3. A place where lessons are taught
  2. 6. A teacher in a university or college
  3. 8. The grounds of a school or university
  4. 13. A place to read and borrow books
  5. 15. A place for scientific experiments
  6. 16. A task given to students
  7. 19. An interactive digital whiteboard
Down
  1. 1. A portable computer used for learning
  2. 2. A place to eat meals at school
  3. 4. A book used for studying
  4. 5. Completion of a course of study
  5. 7. Website where assignments are assigned and completed
  6. 9. A higher education institution
  7. 10. Related to a country or nation
  8. 11. Head of a school
  9. 12. Assignments given to complete at home
  10. 13. An educational talk or presentation
  11. 14. Part of a 24-hour period
  12. 17. A person who is learning
  13. 18. A book for writing notes