Tornados

----------------is a violent rotating column of air extending from a thunderstorm to the ground

• Volcano

• Hurricane

• Tornado

How many tornados happen each year?

• 50

• 100

• 1000

To form a tornado there should be

• hot air

• cool air

• both

A change in (a)   direction and an increase in wind speed with increasing height creates an invisible, horizontal spinning effect

What do tornadoes look like?

• Cone shaped

• slender rope like

• Circle