Kaltura Share to Google Classroom Naturalist Rudy Mancke takes a look at a rattle from a rattlesnake, and discusses how it works. Grades: 3 4 5 6 7 8 9 10 11 12 Subjects: Science Collection: ETV StreamlineSCAbout KnowItAllAudio DescriptionsRudy Mancke Collection Series: Short Takes with Naturalist Rudy Mancke