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Just one week left to submit your answers! What did you discover about sunlight and seasonal change in your global search? More. . .

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Mystery Class Photoperiod Map
 
Reasons for Seasons: Model

Sites around the globe
Wikimedia Commons/DHershman;J.Paulson;Alexanderg;acs;DIMSFIKAS;.NSF

 

Mystery Class is a global game of hide-and-seek. Follow photoperiod clues to search for ten secret sites around the world. Track sunlight to solve a mystery—and discover the reasons for seasons along the way.

 

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