6M Puzzle #3

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Across
  1. 2. the number by which another number is being divided by
  2. 5. the positively charged central core of an atom, consisting of protons and neutrons and containing nearly all its mass
  3. 7. the smallest particle that makes up matter
  4. 8. 2 or or more atoms chemically combined
  5. 9. groups of people under one ruler or government
  6. 10. Becoming an expert in a specific skill or topic (a potter, metalworker, etc.)
  7. 11. everything is made up of matter
  8. 12. the answer to a division problem
Down
  1. 1. growing crops and domesticating animals
  2. 3. the number being divided
  3. 4. a city that was like a small, independent country with its own government
  4. 6. A society with developed arts, sciences, government, and social structure
  5. 10. more than is needed, extra
  6. 11. the multiplication facts of a number