Unit 9

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Across
  1. 2. the basic component of life in our biology
  2. 5. a machine or concept that someone creates for the first time.
  3. 12. something getting better
  4. 13. when a group of people work to achieve a goal
  5. 14. 14 days
  6. 15. this is what you make, when you make something very dirty or untidy.
  7. 16. this is how it "comes" to you when it is very easy.
Down
  1. 1. about 30 years
  2. 3. the basic idea behind something
  3. 4. a very important event in history
  4. 6. someone who travels new lands to discover them
  5. 7. 1000 years
  6. 8. propagation
  7. 9. this is what you "give" to someone when they ask you where a certain place is.
  8. 10. a very big and important advance in science, etc.
  9. 11. scientists or normal people sometimes find new things.