Journey North Mystery Class: A study of sunlight and the seasons

	FINAL Update: May 11, 2007 Meet the Class of 2007 at last! Which site has missed class because of volcanoes? Which one has a tall tower with the actual hairs of Buddha hidden in it? And which site has to eat their barbeque meal really fast or else it freezes? Find out these answers and more when you travel our animated Globe. Teachers, assess if your students grasped the key concepts of Mystery Class. And please let us know your thoughts with our Year End Evaluation. Have a great summer. We hope to see you next year.
	Update: May 4, 2007 Congratulations, what an amazing race! At long last, the ten secret sites are uncovered in a new animated map. Find out "Where in the World" they have been hiding. And for the contest participants, who had the most correct answers? Let us know if you have any far away friends that might want to be a secret Mystery Class for next year! And be sure you come back next week to meet and greet your new friends.
	Update: April 27, 2007 Have you submitted your contest entry yet? The deadline is today, Friday, April 27. Next week we'll post the results. In the meantime, everyone is really getting excited. "I can hear my heart beating" said one student. Play the video to see what might unfold in your classroom. Plus, you're invited to a celebration -- join the fun! And please take a minute to share your thoughts in our Year-end Evaluation -- we'd love to hear from you.
	Update: April 20, 2007 "Where in the world do you think the ten mystery classes are located?" Have you solved the mystery? Hungry for a little friendly competition? Beginning today you can submit your answer for the contest-- you'll have until April 27. We'll reveal the secret locations in just two weeks. In the meantime, find out how big your ecological footprint is. Take the Earth Day Quiz and learn more.
	Update: April 13, 2007 You can almost feel it! The excitement is building all around the World. Use the final sunrise/sunset data and clues to finalize your thinking about where the secret sites are located. Test your conclusions by presenting and defending your case in class. Are you entering the contest? Find out how to prepare your answers. And pop the popcorn and watch this video that rewards you with a world full of praise!
	Update: April 6, 2007 Your tenth set of times are here. Which site's times did something like no other site before? Your mystery friends are anxious to learn if you have uncovered their secret locations yet--have you? Not to worry, after today there is still one more set of clues coming next week. Did you find there was a special force only on the equinox? Find out how one class learned that patience is part of every good experiment.
	Update: March 30, 2007 No April Fooling, this week's times are here and the clues are smokin'! Watch an animated temperature map and see what other clues you can uncover in your search. The answer deadline is drawing near -- we'll provide clues for just two more weeks. And there's breaking news about a cool new invention to zip around the globe. Plus, time's up for the "Egguinox" study. Find out what the Scientist says and how your predictions stood up to the test.
	Update: March 23, 2007 Greetings Gumshoes! It's amazing what a few of the Mystery Classes went through to get their clues to you. But the second set is here, along with the eighth set of data too. Be sure to peek at the image from space -- it's out of this world and you might find a few timely clues there too. Plus, why didn't some locations have exactly equal day and night on the equinox? And what's the status of your "eggsperiment"?
	Update: March 16, 2007 This just in! The first clues have arrived, with a greeting from your mystery friends too. And watch a behind the scenes video about clues. Plus, the seventh set of data is here too--whose times have "slipped"? By the way, what's the standing of your "eggsperiment"? What will you notice next week about your eggs on the vernal equinox?
	March 9, 2007 Happy Vernal Equinox (a little early). To celebrate, here is the sixth set of sunrise/sunset times, with the long-awaited Longitude Clues too. Find everything you'll need in today's report, even two examples we've calculated for you. Are you ready to get a little closer to solving the mystery? Let's get started!
	March 2, 2007 With today's fifth set of data, will your graph reveal any new secrets? Can you predict how it will look on the vernal equinox? Do you know what happened to MC#7's times this week? Take advantage of one last prep session and video for the Longitude Clues which finally arrive next week. Find out how they work, and why it is that they only work on the equinox. By the way, what's the standing of your "eggsperiment"?
	February 23, 2007 Will this week's fourth set of sunrise/sunset data let you list the Mystery Classes from north to south? Are you a fully equipped GSI (Global Search Investigator)? Get more tools, techniques and procedures to prepare for the upcoming Longitude Clues. Finally, get started on this "Eggceptional" experiment -- do eggs really stand up on end only on the Equinox? Make your predictions now.
	February 16, 2007 Can sunrise occur after sunset on the same day at the same place? Look at MC #3's mysterious data. How does changing photoperiod affect everything from plants to animals? Let our video and lesson introduce you to the web of life. And try out the slide show and game to get comfortable with latitude and longitude -- key concepts for your search and the Longitude Clue.
	February 9, 2007 Look what just arrived! A TXT message from one of the Mystery Classes, plus the second set of sunrise/sunset data. Are the photoperiods increasing? Decreasing? Can you unearth anything new about the secret sites? Plus, do you know what the real reasons for seasons are? Explore this fascinating mini-unit of lessons that shines light on this question.
	February 2, 2007 Welcome to Mystery Class! It's data delivery day. The first set of sunrise/sunset data from the mystery sites has arrived. How will you use the data to begin your search? Watch today's videos to find out. Teachers: organize your students with expert advice, including ideas for younger students. So grab your globe -- it's time to explore and discover! We challenge you to find the ten Mystery Class sites using sunrise and sunset clues!
	Reminder: Mystery Class Begins on Monday, January 29, 2007 Where in the world are the ten secret Mystery Classes hiding this year? Grab your passports and search the globe with us. Find all the information you need to begin your global quest in today's update. Good luck, all you diplomats of discovery!