Update
08-07-2015
Content Type
Student Resource
Grade Level
Sixth grade, Seventh grade, Eighth grade
Object Type
Website
License

“We Had a ‘100-Year Flood’ Two Years in a Row! How Can That Be?” explains that the term “100-year flood” is used to describe the recurrence interval or frequency of floods, and that statistically, each year begins with the same one-percent chance that a 100-year event will occur.