This document is the second of a three-volume teacher resource book for use with the Energy 80 energy education program. The program is designed to enhance students' understanding of energy, either through supplements to traditional courses, such as mathematics, science, social studies, or homemaking, or by developing a mini-course or interdisciplinary course in energy. Although written for middle/junior high school students, many of the activities are useful for high school and upper elementary grades. Included are 27 activity sheets, 33 worksheets, 1 reading, and 7 overhead transparency masters for use with units on energy fundamentals (energy flows; measuring energy; energy efficiency) and energy flows in nature (wind/water cycles; photosynthesis; respiration; food chains/webs; energy in the U.S. food system; and origin of fossil fuels as food energy). General objectives for each unit, lesson plans related to each topic/activity, instructional strategies, and background information for teachers are also included. (JN)