School puzzle

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Across
  1. 2. to label or group something
  2. 7. very careful about things
  3. 9. making no sense at all;having no reason
  4. 10. sharp in manner or taste
  5. 12. a basic rule or law
Down
  1. 1. to plan;to make ones way
  2. 3. freedom from danger;safety
  3. 4. using facts being real
  4. 5. a large mass of snow;ice;rocks
  5. 6. to make sure;confirm
  6. 8. to settle down
  7. 11. an urgent request