North Carolina gets hit by tornadoes every year!

A tornado is a natural disaster. It is a violent column of air that swirls around buildings and houses. They appear in a funnel shape or in a slender-rope like form.  A tornado can destroy large buildings, trees and vehicles.

Most tornadoes form from thunderstorms. A tornado occurs when warm, moist air and cool, dry air meets creating instability in the atmosphere. A change in wind direction and an expandation in wind speed creates an invisible, horizontal spinning effect in the lower atmosphere.   

A waterspout is caused by tornadoes. It is just like a tornado except that it twirls only around the top of the sea.

After a tornado hits, many houses are broken down or covered in rubble. This causes a lot of thunderstorms and very heavy rain.

A tornado is very dangerous and can cause a lot of damage. There are a lot of tornadoes that forms in North America because they get a large source of moisture from the Gulf of Mexico and they get warm dry air from other countries which forms the huge tornadoes.  

Learning Intention: We are learning to follow the structure of an explanation.

Success Criteria: I know I can do this when I write an introduction, followed by the explanation, the effects and a concluding sentence to explain how a tornado forms.