Everyday Science: Flood Quiz

Staff

4 Min Quiz

Image: refer to hsw

About This Quiz

Floods hold a prominent spot in the creation myths of many cultures, and today they kill more people every year than any other weather phenomenon. How much do you know about floods?

What caused the famous 1889 flood in Johnstown, Pa.?

On May 31, 1889, after days of torrential rain, the South Fork Dam burst near Johnstown, sending the waters of Lake Conemaugh roaring downhill. The flash flood killed more than 2,000 people in a matter of minutes.

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The Arno River flooded in _____, causing major damage to the art collections of Florence, Italy.

Art historians worked for years to restore Florence's art after the flood in 1966.

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What's a muddy flood?

Muddy floods happen when heavy storms on cropland cause a great deal of runoff. They've increased in some areas because of new home construction and the planting of erosion-sensitive crops.

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One of the world's largest moving structures is a flood barrier. Where is it located?

The massive Maeslantkering, which was completed in 1997, protects the port of Rotterdam in the Netherlands. As of July 2009, it hadn't yet been tested by a major storm.

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According to the National Flood Insurance Program, what's the chance of the average American home sustaining flood damage in the course of a 30-year mortgage?

The organization says the risk is 26 percent, compared to a 9 percent risk of fire damage.

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What should you do if a flash flood is approaching you?

According to Weather.com, 95 percent of people killed in flash floods tried to outrun the flood. What you should do is climb to higher ground out of the path of the flood.

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How much rapidly moving water can knock a person down?

It only takes 6 inches (15 centimeters) of fast-moving water to bring you down.

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In the floods of 1993, how many of the Mississippi River's 1,300 levees failed?

More than 1,000 of the levees failed, but all of the major cities were saved by flood walls.

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What percentage of the city of New Orleans was flooded after Hurricane Katrina in 2005?

Because of the failure of the city's levee system, 80 percent of New Orleans flooded.

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How high was the wall of water that hit Shadyside, Ohio, in a flash flood on June 14, 1990?

After thunderstorms drenched Southeastern Ohio that day, three tributaries of the Ohio River flooded and sent a 15- to 20-foot (4.5- to 6-meter) wall of water into Shadyside, killing 26 people.

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