Georg's puzzle

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Across
  1. 3. grows on a beach
  2. 6. every year you get older
  3. 7. what you do when hungry
  4. 8. it sounds like sheep
  5. 9. first day of the weekend
  6. 11. you eat a yellow fruit
  7. 13. it is cold when you eat it
  8. 15. teacher writes on it
  9. 18. lessons with numbers
  10. 19. third day of the week
  11. 21. first day of the week
Down
  1. 1. second day of the week
  2. 2. last work day of the week
  3. 3. a gamer
  4. 4. take photo with it
  5. 5. you can open and close it
  6. 8. last day of the weekend
  7. 10. where you put your books and you sit in class
  8. 11. between the lessons
  9. 12. you can see out of it
  10. 14. you get it from school
  11. 15. no free time
  12. 16. no school on two days
  13. 17. you can look where countries are
  14. 20. you can do loud music on it