C.C.C of Stability and Change

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Across
  1. 3. something that keeps repeating
  2. 5. the sky dims
  3. 6. hot time of the year
  4. 8. its about time you wake up
Down
  1. 1. chilly time of the year
  2. 2. they come and go, but they´ll be back next year
  3. 4. a butterflies shell
  4. 7. phases change every day, sometimes visible, while other times, not.