Reading on your own One moment, it is sunny and calm. The next moment, a whirling black funnel cloud touches down. Take cover! It’s a twister! This classic Step into Reading science title is brimming with facts about tornadoes and hurricanes. Whether kids are interested in the science of how they form, the history of famous storms, or offbeat stories like the tornado that picked up hundreds of fish and dropped them on a town, they’ll find it in Twisters! , now with all-new illustrations and photographs throughout.