Where Are They Going?

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Across
  1. 1. what a group of birds is called
  2. 7. wanting to do something very much
  3. 8. to move from one habitat to another according to the seasons
  4. 9. no noise
  5. 11. dark shapes made when something is in front of a light
  6. 12. the sound geese and cars make
Down
  1. 2. the weather in one place for a long period of time
  2. 3. how we understand the world around us
  3. 4. the power to do what you want when you want
  4. 5. the feeling you get when you miss home
  5. 6. pure, cool or refreshing
  6. 10. to change for new conditions