Vocabulary unit 4

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Across
  1. 4. global
  2. 6. beginning, start
  3. 12. study of ancient societies.
  4. 13. worth the time, money or effort you spend.
  5. 15. scientific study of the nervous system
  6. 17. result, e.g. of a process, meeting, etc.
  7. 18. continuing to exist for a long time.
Down
  1. 1. the length of time a person or a thing lives.
  2. 2. not heavy
  3. 3. a discovery after a lot of hard work.
  4. 5. reduction of sth, e.g. the amount of money
  5. 7. scientific study of society.
  6. 8. study of the mind and how it affects behaviour
  7. 9. full-____: complete, not limited.
  8. 10. "The positive ____back was very encouraging.
  9. 11. disadvantage
  10. 14. a problem that delays or stops progress.
  11. 16. activity of designing roads, machines, etc.