TornadoesTornadoesCreated by:Created by:

Tanaya, Tanaya, Miriam, Miriam,

Melissa and Melissa and PaulPaul

Tornado FactsTornado Facts A Tornado is small violent storm that A Tornado is small violent storm that

starts over land. In a Tornado, winds starts over land. In a Tornado, winds begin to move in a circle. They may begin to move in a circle. They may go as fast 500 miles an hour. The go as fast 500 miles an hour. The winds make a tall , dark cloud in the winds make a tall , dark cloud in the shape of a funnel. The bottom of the shape of a funnel. The bottom of the funnel may touch the ground.funnel may touch the ground.

Tornadoes are one of the most Tornadoes are one of the most destructive and deadly types of all destructive and deadly types of all weather.weather.

Safety RulesSafety Rules Go to a basement is possible, if Go to a basement is possible, if

you do not have a basement go you do not have a basement go to the first floor in a small inside to the first floor in a small inside room.room.

Stay away from windows.Stay away from windows. Get under a sturdy table.Get under a sturdy table. Do not go into a parked car.Do not go into a parked car.

Tornado Frequency Across the US

0

10

20

30

40

50

60

1 2 3 4 5 6 7 8 9 10 11 12

Month

num

ber

of t

orna

does

Series1

Series2

Source: www.fof.com

Tornado AlleyTornado Alley

Fujita-Pearson Tornado ScaleFujita-Pearson Tornado ScaleCategoryCategory Wind SpeedWind Speed

miles per hourmiles per hourDamage

FO <73 Light damage. Some damage to branches

F1 73-112 Moderate damage. Mobile homes pushed off foundations. Vehicles forced from roads.

F2 113-157 Considerable damage. Roof torn off.

F3 158- 206 Trains are blown over. Strong house lose roof of and walls. Most trees are knocked down.

F4 207-260 Strong houses are totally destroyed. Cars and other large thing are picked up and fly through the air.

F5 261 Entire houses are lifted and blown away. Car and trucks and almost anything can fly through the air. Trees lose their bank.

Source: www.fof.com

How to make a tornado modelHow to make a tornado model Fill the jar ¾ full of Fill the jar ¾ full of

water.water. Add a drop of Add a drop of dish detergent. dish detergent. Add a penny or Add a penny or

marblemarble Put the lid on the Put the lid on the

jar tightly. jar tightly. Move the jar in Move the jar in

circle until the circle until the water inside begins water inside begins to spin.to spin.