This Web site features a daily image of an unusual aspect of the Earth's system. Each image includes a description, when and where it occurred, and other information. Search the archive by keyword or browse by topic going back to 2000. Full description.

In this Web-based, interactive story, Tutangiaq (Too-tang-geye-ack - nicknamed 2T), a Canada Goose, flies across Alaska looking for his family. As he flies, he tells students about the 49th state. Students learn several facts about the state, including how Alaska was purchased from the Russians,. They can also compare the size of Alaska to other states. 2T takes a flight across the volcanic chain ... Full description.

This poster features remote-sensing images from NASA's Sea-viewing Wide Field-of-View Sensor (SeaWiFS). The teaching supplement augments the poster with descriptive summaries of the variety of geophysical phenomena that can be seen in each image. The supplement also includes a glossary of terms and a listing of URLs for additional information. Full description.