The topics of tornadoes and hurricanes are important to children but are often missing from elementary textbooks. This document is a part of "The Natural Disaster Series" and is an attempt to supplement elementary science and social studies programs with lessons and student activities. Reasoning skills are emphasized throughout the booklet. Three questions follow each lesson's introductory information. These ask the student to: (1) think about cause and effect; (2) make a prediction based on the information in the selection; and (3) draw a conclusion which is supported by the evidence. These questions can be used by teachers for diagnosis, practice, or testing. Each of the 15 lessons also includes an instructional activity which is intended to reinforce the main idea of the lesson. The lessons and activities are not sequential and contain information and concepts that overlap into art, literature, history and safety. A glossary is included which is indexed to the page numbers where each term is used. (TW)