School Objects

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Across
  1. 1. the little module of the world
  2. 3. we sit on it
  3. 4. students keep school objects in it
  4. 6. students sit behind of it
  5. 9. we use it when we do not know any word's meaning in some language
  6. 11. we use it when we want to clean something
  7. 12. it gives us knowledge
Down
  1. 2. we write down on it with chalk
  2. 3. we use it when write on the board
  3. 5. we draw with it
  4. 7. we use it when our pen is broken
  5. 8. we write down on it
  6. 10. it can be used for drawing straight line