Going Around in Circles  

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To scientists who study them, twisters are the most fascinating storms on Earth. In this lesson adapted from the Why Files, we take a gander at the wild, whirling winds. 

 Exactly what are tornadoes?
(Here's a logical starting point. To continue reading, hit "more" at the bottom of each page.) 
 Twister energy.
 What's the latest word on tornado prediction? 
 Protect yourself when the sirens blare.
 The famous twisted quiz. 

 Teacher's Guide

I predict that these parties contributed to this edition. 

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