Basic knowledge about Skylab experiments is presented in this book for the purpose of informing high school teachers about scientific research performed in orbit and enabling the teachers to broaden their scope of material selection. The seventh volume deals with the ability of the Skylab crew to live and work effectively in space. The content is divided into three sections. The first section is concerned with the methods and techniques of human engineering used to design work spaces, requirements, and tools. The second section is related to performance in a weightless environment, and the third is related to living in space and inflight aerosol analysis. Experiment backgrounds, experimental procedures, scientific objectives, and types of data output are discussed in each section. Student experiments are suggested for their application to classroom activities. Included are a glossary and a selected bibliography. (CC)