Unit 12 Vocabulary

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Across
  1. 3. an event where people came from all over the world to search for gold
  2. 4. Ghost Town that became a tourist attraction
  3. 6. a polygon with four sides
  4. 9. to decay; to separate into constituent parts
  5. 12. information or proof which helps form a conclusion
  6. 14. an angle whose measure is between 0 degree and 90 degrees
  7. 17. nickname of miners who rushed to California
  8. 19. an angle whose measurement is between 90 degrees and 180 degrees.
Down
  1. 1. method of sifting for gold with water
  2. 2. a pattern in which corresponding values are related by multiplication
  3. 5. having two values written in a fixed order within parentheses
  4. 7. an angle whose measure is 90 degrees
  5. 8. to keep safe from destruction or injury
  6. 10. a pattern in which corresponding values are related by addition
  7. 11. the living parts of an ecosystem
  8. 13. the trace or remains of ancient organisms preserved in rock
  9. 14. nonliving part of an ecosystem
  10. 15. all living and nonliving things in a certain environment
  11. 16. San Francisco was an example of this
  12. 18. mill where gold was discovered.