Reasons for Seasons

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Across
  1. 5. What never experience change in seasons?
  2. 6. What happen in Dec.21st and June 21st?
  3. 7. What is the season in the Northern Hemisphere when it is tilted away?
Down
  1. 1. which ways does the Earth revolve?
  2. 2. largest difference in seasons?
  3. 3. What is in Fall when the Southern hemisphere is in spring?
  4. 4. What does the earth rotate around?
  5. 6. when do the poles have sunlight all day?