Unit 12 Reading 3

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Across
  1. 2. A constituent part or element of a larger whole
  2. 4. To fit together the parts of something, or gather in one place
  3. 5. At the present time, in contrast with the past
  4. 9. To be carried along slowly by water or air currents
  5. 11. To spread or disperse information or ideas widely
  6. 12. Without doubt; certainly and clearly
  7. 13. The matter from which a thing is or can be made
  8. 16. To remove, take out, or obtain by effort or chemical process
  9. 17. To have a specified beginning or source; arise
  10. 18. A long and distinct period of history with a particular feature
  11. 19. With great physical energy, force, or effort
Down
  1. 1. Necessary to make a whole complete; essential
  2. 2. To restrain, check, or keep within limits
  3. 3. To get rid of something that is no longer useful or wanted
  4. 6. To combine parts or elements into a complex whole, or produce chemically
  5. 7. To produce and discharge something, such as gas, heat, or light
  6. 8. To get, acquire, or secure something
  7. 10. To a great degree, or in a way that is hard to believe
  8. 14. By means of human skill or labor rather than naturally
  9. 15. To continue to have, hold, or keep possession of