WeatherQuestions.com: What Causes Tornadoes?
- A description of the special conditions that can cause a thunderstorm to become tornadic.
- http://www.weatherquestions.com/What_causes_tornadoes.htm

Tornadoes: Nature's Most Violent Windstorm
- Pictures of tornadoes and waterspouts, how they forum, myths, and safety tips.
- http://www.nssl.noaa.gov/edu/safety/tornadoguide.html

Questions and Answers About Tornadoes
- Answers some of the most common questions about tornadoes.
- http://www.nssl.noaa.gov/primer/tornado/tor_basics.html

Billy and Maria: Weather Coloring Books for Children
- Join Billy and Maria as they learn about tornado safety and winter weather in these printable pages.
- http://www.nssl.noaa.gov/edu/bm/

USAToday.com - Tornadoes are Earth's Most Violent Storms
- This guide will help you understand tornadoes and how to keep yourself safe when one threatens you.
- http://www.usatoday.com/weather/resources/2006-04-03-tornado-basics_x.htm

Web Weather for Kids: Tornadoes
- Do an experiment to make a small tornado with stuff around the house.
- http://eo.ucar.edu/webweather/tornado.html

National Geographic: Tornadoes
- Shows video clips, detection information, and photography of tornadoes and waterspouts in the United States.
- http://www.nationalgeographic.com/eye/tornadoes/tornintro.html

NOAA Photo Library: Tornadoes
- Offers many pictures and some drawings of tornadoes.
- http://www.photolib.noaa.gov/nssl/tornado1.html

American Red Cross: Tornado
- Gives tips of what to do in case of a tornado.
- http://www.redcross.org/services/disaster/0,1082,0_591_,00.html

Tornadoes: Nature's Most Violent Storms
- Describes how tornadoes form, how many there really are, and what to do if one is coming toward you.
- http://www.nws.noaa.gov/om/brochures/trw.shtml

Exploratorium: Science Snacks: Vortex
- How to make a mini tornado out of plastic bottles.
- http://www.exploratorium.edu/snacks/vortex.html

Tornado Alley
- Explains why some areas of the United States get lots of tornadoes.
- http://www.windows.ucar.edu/cgi-bin/tour_def/earth/Atmosphere/tornado/alley.html

Sky Diary: Tornadoes
- What causes tornadoes and how they are measured.
- http://skydiary.com/kids/tornadoes.html

Experts Answer Tornado Questions
- Everything about tornados explained by the experts.
- http://www.usatoday.com/weather/wtwistqa.htm

The Tornado and Storm Research Organisation
- Independent and privately supported research body in the United Kingdom focusing on tornadoes and severe local storms.
- http://www.torro.org.uk/

Tornadoes
- Looks at what tornadoes are, how they are measured, how they have impacted the world in the past, and what people can do to prepare for them. Includes activity sheets.
- http://www.cdli.ca/CITE/tornadoes.htm

FEMA for Kids: Tornadoes
- Emergency information, stories, pictures, reports, projects, and math.
- http://www.fema.gov/kids/tornado.htm

Tropical Twisters
- Find out what a tropical twister is, how it moves, how destructive they can be, and try the hurricane word search.
- http://kids.mtpe.hq.nasa.gov/archive/hurricane/index.html

S.W.I.R.L.
- A fun introduction to tornadoes from Warner Bros. Read the safety information and the storm chaser's guide.
- http://movies.warnerbros.com/twister/cmp/swirl.html

Tornadoes: Nature's Most Violent Wind
- Contains information about tornadoes such as how they are formed, how they are ranked, and the structure of a tornado.
- http://www.usatoday.com/weather/tg/wtorwhat/wtorwhat.htm

Twister
- Lists information about twisters such as what they are, how they affect the landscape, and where the energy of a twister comes from.
- http://whyfiles.org/013tornado/index.html

Tornadoes: Many Are Different From What Dorothy Saw
- Pictures and information about thiry-two different shapes, sizes, and colors of tornadoes.
- http://www.chaseday.com/tornadoes.htm

What creates a tornado?
- Find out nature's recipe for creating a tornado and why the United States is the tornado capital of the world.
- http://www.pa.msu.edu/~sciencet/ask_st/081397.html