Mystery Class 2012 Week #4

This week the clues we were given generated a discussion about time zones.  Buddy’s birthday is in just two days so he was particularly intrigued to learn that a baby born at the exact same time as he would have been born on a different date if he were born in Norway (for example).  

This year’s 10 Mystery Classes are located in eight different time zones.When daylight saving time occurs, the 10 Mystery Classes will be located in eight different time zones.  A photo captures a single moment in time. New York City’s famous Tourneau clocks show the local time—at a given moment—in different time zones around the world.  
Photo from Journey North

Time Zone Map from Journey North

Using the clues and data from Journey North, we were able to divide the Mystery Classes into northern and southern hemispheres.  This week, however, the munchkins realized they had made a mistake … #7 was indeed in the northern hemisphere but was near the equator, not near the North Pole as they had originally guessed.

Recap of our estimations thus far:

north pole … #5, #10, #1, #9, #3, home, #7 … equator … #8, #2, #4, #6 … south pole

Mystery Class 2012 Week #3

Yesterday, we were able to position the 10 mystery class locations compared to our home location. We hope to have them in the right order. We will be able to verify once we receive more data. We now have 4 locations in the Southern Hemisphere and 6 in the Northern Hemisphere, our home is also in the Northern Hemisphere.

Journey North gave us a clue this week that helped us to place that unknown location by leaving us this clue:
Where Do I Roam? I’m Ursus maritumusI have a clue for you. More than half of the Mystery classes are located in the same hemisphere where I roam. Can you figure out which ones, using the photoperiod data?


Photo from Journey North

Mystery Class 2012 Week #2

We are taking part in  Journey North Mystery Class  once again this year – it will be our third attempt.  Life always seems to pull us away from this awesome project and we’ve never finished.  


Each week, the sunrise and sunset data from each of the ten mystery sites is reported.  We thereby plot the sunrise and sunset time for each site on a graph. As the weeks progress, we connect the dots and a line graph is generated, providing a visual of the photoperiod (hours of daylight) for each location.


At the end of week #2, we were able to sort our data between Southern and Northern Hemisphere. We are able to do this by checking which locations are gaining increasing their photoperiod (Northern) and which ones are loosing daylight hours (Southern). 

photo from Journey North Mystery Class



One location hasn’t changed its photoperiod. The kids presumed this one must be very close to the North Pole.  Here is a recap of our findings this week:


MC # 1 – Northern Hemisphere
MC # 2 – Southern Hemisphere
MC # 3 – Northern Hemisphere
MC # 4 – Southern Hemisphere
MC # 5 – Northern Hemisphere
MC # 6 – Southern Hemisphere 
MC # 7 – ??? – very close to North Pole
MC # 8 – Southern Hemisphere
MC # 9 – Northern Hemisphere
MC #10 – Northern Hemisphere