It’s a twister! It’s a twister! In the BrainPOP movie on tornadoes, Tim and Moby will tell you everything you need to know about these violent storms. You’ll find out how changes in air pressure and wind direction create violent, whirling masses of air. You’ll learn how tornadoes come in all different shapes and sizes, and discover how big they can be, how fast they can move, and how long they usually stick around for. Finally, you’ll hear all about the scale we use to measure tornadoes, and which types are the most common. So come out of your basement, climb out of...
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