Last Day of School Crossword

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Across
  1. 1. A humanoid robot. Also an operating system.
  2. 3. Essential; important
  3. 4. Award-winning singer with emotional songs about heartbreak
  4. 5. Taking large chunks of other people's work and passing it off as your own
  5. 8. Impossible to understand or interpret
  6. 10. Lacking originality or freshness
  7. 15. An old-fashioned word for 'pram'.
  8. 17. The plural of elderly
  9. 19. Enthusiastic; passionate
Down
  1. 1. What 'A' stands for on your test paper
  2. 2. Permanent; cannot be erased
  3. 6. What you need to bounce back after a setback
  4. 7. A planet that's not really one
  5. 9. What you should be feeling if you can't spell this word
  6. 11. The expression you get from a teacher when your classroom is dirty.
  7. 12. What some of you need to improve on in your essays
  8. 13. The type of towering cloud that forecasts a thunderstorm. Sometimes seen above teachers' heads after you fail a test.
  9. 14. The scientific method of gathering and analysing information about a crime
  10. 15. Mammal that lays eggs
  11. 16. Word you say when it's the last day of school
  12. 18. The strongest force on the planet