physical geography
U. of Wisconsin Sea Grant: Great Lakes Education and Outreach
This site seems to be aiming to have all the information you'd need to understand the geography and ecology of the Great Lakes region. Most of the information is aimed at adults, but would be accessible to an interested child. There is also a Parent/Kids section with information on the birds, fish, frogs, and more of the Great Lakes.
"Geography4kids.com" an introduction to physical geography
Physical Geography deals with Eartch Science and why the Earth is the way it is, it doesn't deal with political boundaries, or humanity much at all. Geography4kids is friendly, thorough website with lots of pictures that teaches about physical geography. Ideal for an enthusiastic upper elementary level student up through adults.
