How can i make a working model of a tornado?
966204
Pickle jar, blue food coloring, soap. place in jar, lid on jar, shaked around and around 10 times. funnel should spin, touch down and go back up.
84236
They'd have to be aerodynamic in all directions, this would take up more space than a normal home (it'd have to be flatter) on the other hand, they could all live in windmills in a tornado area and then there'd be loads of energy :)
855855
JUST MAKE A 3D-MODEL OF A PRISM OUT OF A CARDBOARD OR THERMACOL
104124
check out this tutorial at this really cool site...it's illustrated and it worked for me ....good luck
47429
Go here http://www.fema.gov/hazards/tornadoes/\nand here http://en.wikipedia.org/wiki/Tornadoes
982259
They are very rare, but I think as long as there is cold air clashing with warmer air (which can happen even in the winter), you can create conditions favorable to tornado developement. We had a severe snow storm in which we had thunder and lightning, the sky even turned slightly yellow....scary.
1008339
Most tornadoes follow a recognizable life cycle.[6] The cycle begins when a strong thunderstorm develops a rotating mesocyclone a few miles up in the atmosphere, becoming a supercell. As rainfall in the storm increases, it drags with it an area of quickly descending air known as the rear flank downdraft (RFD). This downdraft accelerates as it approaches the ground, and drags the rotating mesocyclone towards the ground with it.\n\nAs the mesocyclone approaches the ground, a visible condensation funnel appears to descend from the base of the storm, often from a rotating wall cloud. As the funnel decends, the RFD also reaches the ground, creating a gust front that can cause damage a good distance from the tornado. Usually, the funnel cloud begins causing damage on the ground (becoming a tornado) within minutes of the RFD reaching the ground.\n\nInitially, the tornado has a good source of warm, moist inflow to power it, so it grows until it reaches the mature stage. During its mature stage, which can last anywhere from a few minutes to more than an hour, a tornado often causes the most damage, and can in rare instances be more than one mile across. Meanwhile, the RFD, now an area of cool surface winds, begins to wrap around the tornado, cutting off the inflow of warm air which feeds the tornado.\n\nAs the RFD completely wraps around and chokes off the tornado's air supply, the tornado begins to weaken, becoming thin and rope-like. This is the dissipating stage, and the tornado often fizzles within minutes. During the dissipating stage, the tornado becomes highly influenced by the direction of surface winds, and can be blown into fantastic patterns.\n\nAs the tornado enters the dissipating stage, its associated mesocyclone often weakens as well, as the rear flank downdraft cuts off the inflow powering it. In particularly intense supercells, tornadoes can develop cyclically. As the first mesocyclone and associated tornado dissipate, the storm's inflow is concentrated into a new area closer to the center of the storm. If a new mesocyclone develops, the cycle may start again, producing a new tornado. Occasionally, the old, or occluded mesocyclone, and the new mesocyclone produce a tornado at the same time.\n\nThough this is a widely-accepted theory for how most tornadoes form, live, and die, it does not explain the formation of smaller tornadoes, such as landspouts, long-lived tornadoes, or tornadoes with multiple vorticies. These each have different mechanisms which influence their development—however, most tornadoes follow a pattern similar to this one.
559953
Go to metacafe, and put in the search space, a tornado is born.  It's an awesome video.
109227
A tornado is basically like a giant vacuum cleaner.  They are frightening and amazing all at the same time!\n\nEverything you ever wanted to know about them can be found in this excellent resource from NOAA.
265887
http://www.spc.noaa.gov/climo/historical.html\n\nThis has it broken down a little more then you might need but just click on the year and you get each tornado, location and fatalities.
274665
The definition of a tornado is a violently rotating column of air that extends from the base of a thunderstorm to ground level.  The circulation MUST go all the way to the ground and all the way to the cloud base.  There does not need to be a visible funnel for a tornado to occur.  The visible funnel often is the result of debris or rain being wrapped into the circulation.  This is why tornadoes come in different colors.  A tornado that moves over the red dirt of Oklahoma may take on a red hue, while one that moves over black soil may look black.  There are even "white" tornadoes, which get their tone from moisture being wrapped in.\n\nRadar is useful for determining if a thunderstorm has the necessary circulation in the mid levels to produce a tornado or that a storm COULD produce a tornado, but it can't tell if that circulation is actually on the ground.  Only human eyes can tell that.  As a result, the National Weather Service works with specially trained volunteer weather spotters through a program called SKYWARN.  These spotters are mostly volunteers, most of whom are licensed Amateur Radio operators.  These spotters monitor the storms from the field and radio reports of tornadoes or other hazardous weather to a liaison or directly to the NWS.  Some spotters also "chase" storms.  They watch the weather forecasts and may travel to areas where storms are likely to form.\n\nI'm a SKYWARN weather spotter, and have seen several tornadoes over the years.  It's a real trip to see a tornado form, move and eventually "rope out" and die.  However, it's very dangerous to get close to one (obviously!).  I was just in the right/wrong place at the time...\n\nThe sites I have listed below are ones that I have found useful over the years.  You can even get your own local weather by going to the first link (NWS) on the list and entering in your ZIP or by clicking your area on the map.\n\n*Edited to add another great link (SPC website)
490639
There is a website on how to make a volcano model below
813609
Get out of the mobile home and go to a sturdy building if there is one nearby. If no buildings available, take a blanket or pillow to protect your head and lie face down in a ditch or depression in the ground. If you live in a tornado prone area there are usually tornado shelters available. Find out if there are any in your area and make arrangements in advance for the use of it during storms.
447399
Try this site, it might give you some ideas, help.\n\nwww.modelexpo-online.com
397369
http://www.bookfinder4u.com/search/Tornado.html\n\n\nyou should find it there..
89256
Well I recomend Tornadoes. They made a great project for me ^^ U can actually MAKE a tornado in ur classroom WIHTOUT that dinky water bottle trick! It was a great project. Another good one is Mice and shape rocognition. U put together a maze with portals in the shape of triangles, circles and squares, and see if u can train the mice to recognize that the triangles will always lead to the food instead of what they naturally assume(circles) E-mail me for further details on the Tornado Project which I HIGHLY recomned! happiest_phantom@yahoo.com
672629
Make a 3d model and print it out using anim8or @ anim8or.com\n\nIf that is not in option, try using a styrafoam block and carve it.