School objects

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Across
  1. 3. "I shine so bright that your eyes love me."
  2. 5. Colour bursting in all direction from it's tip that is shaped like a cone
  3. 10. Joins papers with it's sharp metal like teeth
  4. 11. It removes your mistakes
  5. 12. Is expressionless and pale in colour
  6. 14. Is a place for keeping notes together
  7. 16. It's ink is used to write beautifully
  8. 17. It is a soft compressed powder
  9. 18. Is a smart piano
  10. 19. Has many pages but are all blank
  11. 20. Likes to rest on your back
Down
  1. 1. Is a lifesaver in many cases
  2. 2. "I like to cut off extras."
  3. 4. Likes to stick with others
  4. 6. It likes to compare its height with others
  5. 7. "Don't know where to go? Well use me for direction!"
  6. 8. It's height shortens as it grows older
  7. 9. Has 4 legs that clings to the ground
  8. 13. Is thick and contains lots of knowledge
  9. 15. A furniture with a leveled top
  10. 17. "I tick as time goes by."