Study the Polar Bears: http://edcommunity.apple.com/ali/story.php?itemID=16609 and http://www.tundrabuggy.com/

Learn history through art - or is art through history?

http://picturingamerica.neh.gov/index.php?sec=home (note: I believe everything is available on the website for free; schools or homeschool groups can apply to receive reproductions of the actual artwork)

Of course, I read about all this stuff and have no time to do any of it!!