Basements Are Rare In Tornado Alley
Interesting Facts in Easy English
Pre-Listening Vocabulary
- storm belt: an area that has a high incidence of storms
- clay: a type of earth that is soft and pliable when wet
- shrink: to get smaller
- tornado: strong rotating winds that form a funnel shape
- alert: a warning of pending danger
- time consuming: takes a long time
- the frost line: the depth in the ground where ground water will freeze in the winter
- foundation: the base or bottom layer of a building or structure
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Basements Are Rare In Tornado Alley
Comprehension Questions
- Where is the best place to seek shelter during a tornado?
- Where is Tornado Alley?
- Why aren’t basements easy to build in Oklahoma?
Discussion Questions: Should the government pay for emergency safe rooms and community shelters in storm belts, or should homeowners carry the major costs of building their own personal shelters?
Answers
Basements Are Rare In Tornado Alley
Most people know that the best place to seek shelter during a tornado alert is in a basement. Unfortunately, homes, schools, and businesses in Tornado Alley are typically built without basements. Tornado Alley is a storm belt in the US Midwest between the Rocky Mountains and the Appalachian Mountains. It is very difficult to build a basement in these plains because much of the earth is made of clay. Clay shrinks when it’s dry and expands when it’s wet. Despite the risk of deadly twisters in Texas, Oklahoma, and Kansas, it is too costly and time consuming to build and maintain basements or underground cellars in these areas. Further north where people experience colder winters, almost all homes and businesses have basements. When soil freezes and thaws it becomes very unstable; therefore, foundations must be built below the frost line.
- The best place to seek shelter during a tornado is in a basement.
- Tornado Alley is in between the Rocky Mountains and the Appalachian Mountains in the US Midwest.
- Basements aren’t easy to build in Oklahoma because the earth is made of clay. Clay expands and contracts.
