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Transcript

Flood!

What is a flood?

A form of natural disaster when there is more water than the lakes, rivers, oceans, or ground can hold.

What causes floods?

Flooded areas of land usually start off as very dry land. Floods are caused by heavy rains that pour to much water into rivers and other waterways. Making these natural channels unable to carry all the water. Rising water flows over or breaks the banks to the waterways causing the surrounding land to be flooded. Different causes of floods can come from masses of snow melting of tidal waves.

How are floods measured?

Floods are measured by a known level of depth. If the water level is over that depth, it may be considered a flood.

When does a Flood occur?

A flood may happen at any time near a body of water, mostly around the rainy seasons, when the river or lake or any body of water overflows.

Where in the United States do floods happen the most?

In the United States, the state that most floods happen is in Florida.

What is the most devastating flood?

The most devastating flood is the China Flood

in 1931. It killed 2,500,000 - 3,700,000 people.

Over 500,000 people were evacuated from their home.

More people died, than were saved. This is a very rare case.

After the flood they had a drought for 2 years.