"A simple exploration of tornadoes, examining how these spinning storms develop, how scientists watch for them and measure their strength, and the damage 'twisters' can cause"--Provided by publisher. Contents: What is a tornado? -- Sizes and shapes -- Measuring tornadoes -- Famous tornadoes -- Funnel in a bottle activity. Part of the "Our Wonderful Weather." Interest Level: K-3 Reading Level: 3.5 ATOS Book Level: 3.7 AR Interest Level: LG AR Points: .5 AR Quiz: 173653EN DRA: 14.