No Topic in Particular

123456789101112
Across
  1. 5. large store or area of a company
  2. 7. large food store
  3. 9. level of challenge
  4. 10. a kind of job
  5. 12. strongest club in golf
Down
  1. 1. five layers, above the Earth
  2. 2. number of people
  3. 3. the most frequent item in a data set
  4. 4. America's second president
  5. 6. country
  6. 8. opposite of subtraction
  7. 11. Robert Hooke discovered the