Archived Season

Spring 2013
Weekly: January - May
Meet the Class of 2013 Postcards Mystery Class Update: May 10, 2013
It's time to meet & greet the Class of 2013!
Spinning globe showing locations Mystery Class Update: May 3, 2013
Today's the big day! Discover where on the globe the 10 mystery sites have been hiding. Next week you'll meet the people at each site.
Earth Mystery Class Update: April 26, 2013
Midnight Friday is the deadline to submit your answers. How did your search for Mystery Classes change how you see Earth and the seasons?
Wordcloud Mystery Class Update: April 19, 2013
What have you learned on your quest? Solve the Season Summary Challenge and showcase your discoveries.
Feet on beach

Mystery Class Update: April 12, 2013
The final set of interdisciplinary clues is here. It's time to find the secret locations!


Volcanic terrain audio Mystery Class Update: April 5, 2013
The third set of interdisciplinary clues is here to help narrow your search. Final clues are next week.
Ape Mystery Class Update: March 29, 2013
It's week nine. The second set of interdisciplinary clues is here. Build upon last week's clues and narrow your search even further.
Ape Mystery Class Update: March 22, 2013
Spring officially arrived this week. It's time for the first set of interdisciplinary clues! Each week they'll reveal fascinating facts to progressively narrow your search.

Mystery Class Update: March 15, 2013
The Longitude Clues are here! Narrow your search by estimating the longitude of the Mystery Classes.

Sunrise on the Equinox Mystery Class Update: March 8, 2013
It's week six! How will your photoperiod graph look by the end of March? Get ready for next week's special Longitude Clues.
National Maritime Museum Mystery Class Update: March 1, 2013
It's time to zero in on the line that separates the Eastern and Western Hemispheres. This week, learn more about longitude lines to prepare for special clues coming March 15th.
Meerkats Mystery Class Update: February 22, 2013
Clocks around the world are set at different times. This week, explore time zones to get ready for special clues coming in March.
Emperor penguins Mystery Class Update: February 15, 2013
With three weeks of photoperiod data, can you tell which Mystery Class sites are north and south of your hometown? This week, a royal family reveals a clue.
Neptune statue Mystery Class Update: February 8, 2013
What clues will you find in this week's second set of sunrise/sunset data? What line separates the Northern and Southern Hemispheres? Visit the Latitude Shoes Art Gallery, then explore the globe along your own line of latitude.
Postcard Mystery Class Update: February 1, 2013
Welcome to Journey North's global game of hide-and-seek! Somewhere under the sun there are ten Mystery Classes waiting to be found. Looking for clues? Start with today's postcard, then see what the first set of sunrise/sunset data reveals.
Sun Mystery Class Begins Monday!
We challenge you to find the ten secret Mystery Classes hiding around the globe. Are you ready to begin?
Earth from space Welcome and Orientation
Once Mystery Class begins on January 28, weekly news will be posted on this page every Friday from February to May. (See schedule above.) We'll challenge you to find ten Mystery Class sites using sunrise and sunset times and other "clues" as your guide!. Learn more about this global game of hide-and-seek.
Countdown to Mystery Class: Fall 2012
Monthly: Sept.1, Oct.1, Nov.1, Dec. 1, Jan.1
The "Countdown" will help you get ready for the spring 2013 Mystery Class project.
moon January 2013
Does the moon have a daily cycle? Apply what you've learned about the causes of day and night on Earth as you sharpen your thinking skills for Mystery Class, which begins on January 28, 2013.
clock December 2012
During Mystery Class, students will receive sunrise and sunset times from mystery locations around the world. This month, set time zone clocks to explore local and Universal Time.

November 2012
Days are getting shorter in the Northern Hemisphere as winter approaches. This month, begin to explore the question: What makes seasons?

Follow the Sun

October 2012
Autumn officially began in the Northern Hemisphere last week, and days are getting shorter. This month, explore what causes day and night?

Sunlight and the Seasons: Map of Day Length around the Globe

September 2012
As you "countdown" the months before Mystery Class begins in January, track changes in daylight as the Earth revolves around the Sun. Report to the live photoperiod map each month--and on the equinox and solstice. Share and compare observations with people around the globe!

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