Silent letters

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Across
  1. 4. an expert of science
  2. 5. information and facts
  3. 8. extremely tiring
  4. 9. two blades used for cutting
  5. 10. a place where water moves quickly in a circular motion
  6. 11. a vegetable often used in pies
Down
  1. 1. to twist and turn or squirm
  2. 2. planned or made something
  3. 3. the science of the mind
  4. 6. worth being remembered
  5. 7. very small in size
  6. 10. complained