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Day and Night Countdown to Mystery Class: Fall 2013

January 2014
Where in the world did the new year arrive first?

As you ring in 2014, get ready to find ten new secret sites hidden around the globe! Mystery Class begins on Friday, January 31st!

December 2013
During Mystery Class, students will receive time clues from secret locations around the world. This month, explore local and Universal Time.
Day and Night November 2013
Days are getting shorter in the Northern Hemisphere as winter approaches. This month, begin to explore the question: What makes seasons?
Day and Night October 2013
Explore what causes day and night. Photoperiod is a central clue in Mystery Class, so build skills by reporting your photoperiod each month.
Sunset September 2013
As you countdown the months before Mystery Class begins in January, track changes in day length as the Earth revolves around the Sun.
Track the Seasons to Solve a Mystery

Monthly: September 1, 2013 - January 1, 2014
As you countdown the months before Mystery Class begins in January, track changes in day length as the Earth revolves around the Sun.

Sun Archived Seasons

Explore previous Mystery Class Challenges.

Countdown to Mystery Class

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