Weather. One of the things life can't live without. But yet, at the same time, weather can cause havoc and destruction, from rotating tornadoes to flash floods. Here, you can learn about weather and its affects on Earth.

A Tornado Is "a violently rotating column of air, in contact with the ground, either pendant from a cumuliform cloud or underneath a cumuliform cloud, and often (but not always) visible as a funnel cloud."