Spelling Bee

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Across
  1. 2. the number in a fraction that is above the division line
  2. 5. when you put different things together and make them into one thing
  3. 6. when more and more people start living in cities instead of the countryside
  4. 7. a large group of people who live in the same place
  5. 8. power or ability to do work
  6. 9. a number written as one number divided by another
Down
  1. 1. the system of public works of a country, state or region
  2. 3. any physical substance that has mass and takes up place
  3. 4. the number in a fraction that is below the division line
  4. 8. the act of expanding or the state of being expanded