Museum of Unnatural Mystery
http://unmuseum.mus.pa.us
If visual perceptions tell us that not everything we see is for real, then we're right in questioning many things in our world. For example, what are UFOs and have Martians ever visited? The Museum of Unnatural Mystery is an unconventional but fascinating cyberspace museum that takes a scientific look at oddities. There's lots of real science, but you can also check out visitors from outer space in The Hall of UFO Mysteries. Time Travel Tours take you to the Seven Wonders of the Ancient World. "Things that should be dead but might be still alive" are in the Lost Worlds Exhibition. Tour the museum's prehistoric pages in Dinosaur Safari.

Forces of Nature
http://library.thinkquest.org/C003603/
Natural disasters happen all around the world and are devastating when they occur. This Web site teaches you how various disasters happen and how to be prepared when they do. These “Forces of Nature” include everything from avalanches to volcanoes and a lot of scary weather in between. There are real stories and interviews, interactive quizzes and games on this site that students created.

How Things Fly
http://www.nasm.si.edu/galleries/gal109
One of the great places in the world to learn about aviation and space is the Smithsonian Museum's National Air & Space Museum. At the Web site for this great museum is a thorough and fun explanation of how things fly. From this page, select "How DO planes really fly" and begin an interactive journey in which you'll learn all about flight. Or learn about spacecraft, balloons, or birds.