Soft 'c' spelling words

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Across
  1. 3. In the shape of a circle
  2. 4. Has 100 legs
  3. 6. Current can flow through
  4. 8. 100 of these make a dollar
  5. 9. Mix with water to make concrete
  6. 10. Small room for a prisoner
Down
  1. 1. Inhabitant of a city or town
  2. 2. Come to an end
  3. 4. Find acrobats and clowns here
  4. 5. Watch a movie here
  5. 7. Perfectly round geometric shape
  6. 8. Large or important town
  7. 10. Underground room for storage