Tornado Terror by Lauren Tarshis

There is different types of tornados. There is a scale between EF0-EF5. EF0 is a minor or no damage tornado. EF1 is moderate damage, EF2 is considerable damage, EF3 is severe damage, EF4 is extreme damage, and last but not least an EF5 is the most dangerous. It causes total destruction of buildings and anything in its path. Many people died in a EF5 tornado in Joplin, MO in 2011. There are tornado chasers that chase tornados to learn about them and to warn people in the area.