NASA Global Change Master Directory
http://gcmd.nasa.gov/index.html
The data set resources on this site are very rich. There are multiple data sets for Earth and natural science categories listed. Subjects include: Agriculture, Oceans, and Climate Changes. Each topic is divided into sub-topics followed by links to data sets.
In the Data Services section of the website is the Education/Outreach area. Here you will find links to Curriculum Support, Interactive Programs, and Exhibit Materials. The Curriculum Support page contains the following resources: Background Information, Lesson Plans, and Classroom Activities.
