Apr 19, 2016 ... Tornadoes are violent storms that kill 80 people each year. Here are some facts
about how they form and how to stay safe.
May 30, 2013 ... The intense spinning of a tornado is partly the result of the updrafts and
downdrafts in the thunderstorm (caused by the unstable air) interacting ...
How Do Tornadoes Form? Tornadoes are associated with large (supercell)
thunderstorms that often grow to ... This causes a horizontal rotating column of air
www.ask.com/youtube?q=How Are Tornadoes Caused&v=ep2YY_D7wdk
Dec 12, 2013 ... This is a Science Made Easy Video. A quick and fun cartoon lesson about
tornadoes. Great for teachers and students- hope you guys enjoy!
Types and Causes of Tornadoes: A tornado is a strong, turbulent column of air,
moving fast and keeping in contact with the earth's surface and a vertically ...
www.ask.com/youtube?q=How Are Tornadoes Caused&v=lmWh9jV_1ac
Aug 19, 2014 ... View full lesson: http://ed.ted.com/lessons/how-do-tornadoes-form-james-spann
Tornadoes are the most violent storms on Earth, with wind ...
Apr 8, 2014 ... The U.S. has more tornadoes than anywhere else on Earth, but their sudden
twists and turns still make them mysterious and mesmerizing.
A tornado is rapidly spinning air that develops from a thunderstorms and is ... This
rising air is what causes all the rain and hail to form from the water in the air.
May 11, 2015 ... Tornadoes remain deadly and relatively unpredictable, despite ... Half of those
deaths are caused by the strongest one percent of the most ...
Tornadoes, nearly three-quarters of which occur within the U.S., are
unpredictable and can cause massive damage. New tools and data are helping