Science Experiment: How to Make a Tornado in a Jar

Sources

"Make a Tornado in a Jar!" University Corporation for Atmospheric Research. Undated. (July 21, 2010)
http://eo.ucar.edu/kids/dangerwx/tornado4.htm

"Tornadoes… Nature's Most Violent Storms." National Oceanic and Atmospheric Administration. Undated. (July 21, 2010)
http://www.nssl.noaa.gov/edu/safety/tornadoguide.html

Toothman, Jessika. "Indoor Tornado Experiment. TLC.HowStuffWorks.com. Undated. (July 21, 2010)
http://tlc.howstuffworks.com/family/science-projects-for-kids-air-pressure2.htm

"Severe Weather and Natural Disasters: Tornadoes." Teacher.scholastic.com. Undated. (July 21, 2010)
http://teacher.scholastic.com/activities/wwatch/tornadoes/experiments.htm