Geothermal Energy.

This curriculum unit describes geothermal energy in the context of the world's energy needs. It addresses renewable and nonrenewable energy sources with an in-depth study of geothermal energy--its geology, its history, and its many uses. Included are integrated activities involving science, as well as math, social studies, and language arts. Higher-order thinking and problem-solving skills have been suggested or included in the activities whenever possible. This book is designed for use with grades 4-8 and contains lessons and activities that can be selected based on the class knowledge and ability and the time available. Each section contains Student Information and Student Activity pages. Also included is a For the Teacher section that contains tips, extra directions, and extra activities and demonstrations to enhance instruction. Sections include: Earth's Natural Heat, Using Earth's "Low" Temperature Heat, Generating Electricity: Using High Temperature Geothermal and Other Resources, and A Geothermal Scrapbook: Hot Items. Appendices contain a bibliography, a list of resources, and correlation with 1990 California Science Framework. (JRH)