Each workbook consists of approximately 30 lessons, which are designed to increase the student's level of competency in science and verbal skills. The series seeks to provide students with simple explanations of key concepts, reinforcement, and examples of science in daily life. This unit orients students to the tools that are used to study space, the effects of the earth's motions, and the features of the solar system and stars. One typical lesson about galaxies begins with a page that emphasizes the vastness of space and the infinite number of stars. The background information identifies the three different categories of galaxies as spiral, elliptical, and irregular and discusses the ideas originating from Edwin Hubble's discovery that the galaxies are moving away from one another.
Students answer matching and true and false questions in addition to completing a word search.
Black and white photographs and illustrations are found throughout the books. The teacher edition has lesson teaching strategies and the pages from the student book with the correct answers provided. Information about the metric system, constellations, and space probes and missions are found at the back of the book. A glossary is included with the index.