It's week five! Time to zero in on the line that divides the globe into east and west. This will help you prepare for the special longitude clues that are coming March 19th.

This Week's Update Includes:

• Clues: This Week's Sunrise/Sunset Data
• Journal: Reflecting on Data and Concepts
• Related Links: Explore These Helpful Resources

Image of the Week

National Maritime Museum

What line divides the Earth into Eastern and Western hemispheres?

• Sunrise/Sunset Data for Monday Mar 1
• Look up your own sunrise/sunset data for Mar 1

Collect and organize your data:

• Mystery Class Data Sheet and Graph
• All Data and Clues for Spring 2010