Mystery Class
Jim Gilbert

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Mystery Class
Tracking Changes in Photoperiod Around the Globe

Journey North News will be posted on Fridays

Feb. 6, 13, 20, 27, Mar. 6, 13, 20, 27,
Apr. 3, 10, 17, 24, May 1, 8, 15


Journey North News

  • Meet The Mystery Class Coordinators
    Meet Mrs. Berger's 5th Grade class from Roslyn, New York. Each week they gather the sunrise/sunset times from all 10 secret Mystery Classes and bring them to you.
  • FINAL Mystery Class Update: May 15, 1998
    All ten Mystery Classes have written Introductions ready for reading, and they just can't wait to meet you! So, let's get started, and we hope you enjoy meeting your new Mystery Friends.
  • Mystery Class Update: May 8, 1998
    Today's the day you've all been waiting for...the secret Mystery Sites will be revealed! Take a look and see if you figured out "Where In The World" they were. And then come back next week and "meet" your new Mystery Friends, when we post their introductions and photos too.
  • Mystery Class Reminder: May 1, 1998
    Hurry, don't be late--if you haven't sent in your Mystery Class guesses yet, you must do so today. We've provided the instructions again, along with a schedule for the final two weeks. Good luck!
  • Mystery Class Update: April 24, 1998
    The race is on--the final sunrise/sunset data and clues have arrived and now it's your turn! Read the instructions carefully and see if you can figure out where each Mystery Site is hiding. Be sure to place your guess no later than Friday May 1st.
  • Mystery Class Update: April 17, 1998
    Your Mystery Friends have provided another set of clues. Just one more week and counting and then you'll have a chance to place your guesses! Also, today's report contains this week's Sunrise/Sunset Data, with thanks again to Mrs. Berger's class!
  • Mystery Class Update: April 10, 1998
    Your Sunrise/Sunset Data have arrived once again! All the thanks go to Mrs. Berger's class for faithfully sending today's data to you. In addition, you'll find another set of clues from your mystery friends. Clues will be coming for just 2 more weeks (on 4/17 and 4/24), and then you'll have a chance to place your guess!
  • Mystery Class Update: April 3, 1998
    The secret Mystery Sites are thinking about you and wondering how you are doing. One even sent a greeting. Plus, the latest sunrise/sunset times from Mrs. Berger's class at East Hills School in New York. And another set of clues too.
  • Mystery Class Update: March 27, 1998
    You're almost there! And here come the second set of clues direct from your Mystery friends. Plus this week's sunrise/sunset times from Mrs. Berger's class.
  • Mystery Class Update: March 20, 1998
    Happy Vernal Equinox! In celebration, this week's update is chockful of special clues to help you solve the Longitude problem. Mrs. Berger's class has had no "problem" gathering your regular sunrise/sunset times for you. Plus responses to last week's Challenge Question.
  • Mystery Class Update: March 13, 1998
    "The times they are a changing" Plot this week's Mystery Class sunrise/sunset times on your graph. Can you predict how your graph will look on March 20?
  • Mystery Class Update: March 6, 1998
    See how seasonal changes in photoperiod can affect the food web. Plus, as sure as the sun rises each morning, Mrs. Berger and her students bring you this week's sunrise/sunset data again from the Mystery Sites.
  • Mystery Class Update: February 27, 1998
    Explore why changing daylight is important to migration. This presents a good opportunity to conduct the Seeing the Light lesson. Learn about the Solar Eclipse. Check this week's latest sunrise/sunset times.
  • Mystery Class Update: February 20, 1998
    Collect your second set of sunrise/sunset times, and see who's gaining light, who's losing light and who is staying the same.
  • Mystery Class Update: February 13, 1998
    Here they are! The long-awaited first set of sunrise/sunset times from all ten Mystery Classes. Also read our suggestions on how to organize your class for this activity.
  • Mystery Class Begins on Monday, February 9, 1998
    Rise and Shine! Remember to check your sunrise/sunset times for your hometown on Monday. The Journey North Mystery Class project is about to begin.
  • Visit the Journey North, 1997 Archives

Related Resources

Sunrise/Sunset Tables

Mystery Class Charts & Graphs