Can You Find the Mystery Class Sites? Somewhere under the sun, kids at ten secret sites are watching how day length changes with the seasons. We challenge you to find the ten Mystery Class sites using sunrise and sunset clues. Mystery Class starts in early February. Get ready now by building skills and understanding of Earth's daily and seasonal cycles. >>

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Background information for the Mystery Class Project >>

News
Weekly updates every Friday, from February until May >>

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Videos, pictures, and slideshows about sunlight and the seasons, just for kids .>>

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Lessons, Activities and Information for the Classroom >>

Questions
Frequently Asked Questions >>