Curriculumbits: Tornadoes
May can be a month of extremes in weather and the formation of tornadoes is one example of those extremes. Watch and listen to the Professor, self-proclaimed expert in extreme weather, as he explains each step of how a tornado is created. As you watch each diagram, the Professor tells about the meteorological conditions that occur in each step along the way that may result in a tornado. You can hear the thunder and increasing winds as the tornado gains its structure. The force of a tornado is based on the Fujita scale, and you can see the effect of each increase up the scale as the tornado rips through town.
http://www.curriculumbits.com/prodimages/details/geography/geo0009.html
Artopia: Sculpture
Pay a visit to this examination of sculpture in the realm of fine arts. As you enter the lobby, you have an array of choices to make to help you learn more about sculpture. Perhaps the best place to begin is with the one-minute movie that gives a brief look of sculpture throughout history. After that the Sculpture Studio is the place to go find out about three ways of producing sculptures, carving, casting, and modeling. The interactive lets you manipulate the tools needed for each type of sculpture. Short videos introduce several sculptors as they talk about how they create. Be sure to try your hand at being an art critic and find out even more information. 
http://www.knowitall.org/artopia/sculpture/index.html