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Mystery Class 2009 is completed.
Explore the Classes of 2009 below.

Mystery Class 2010 will begin in February.
Come back later this summer for more details.

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. >>

Get started

Get Started
Background information for the Mystery Class Project >>

Rotating Earth with question marks

News

News
Weekly updates every Friday, from February until May >>
  Meet the Class of 2009 >>  

Activities for Children

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


Quick Links:

  • Contest Results >>
  • Congratulations! Download Your Certificate >>
  • How to Participate >>
  • Sunrise/Sunset Data & Clues >>
  • Sunrise/Sunset Lookup >>
  • Calendar >>
  • Glossary >>
  • Advice from Mystery Class Teachers >>

Student working

Explore
Lessons, Activities and Information for the Classroom>>

Questions
Frequently Asked Questions >>

 

 

Graphic: The Living Earth® and Moon and Earth and Earth Viewer >>

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