Developed to provide seventh and eighth grade students information about careers in the marine science occupational cluster, this booklet may be used to integrate career information with various subject areas. (It is one of several student booklets developed for use in the Ohio Career Orientation Program at grades 7 and 8 to assist students in making tentative career decisions for exploration activities in grades 9 and 10.) Most of the guide is devoted to overviews of four career areas in the cluster, followed by description and discussion of several specific jobs in each area. The four areas are (1) marine transportation, (2) marine resources, (3) marine construction and manufacturing, and (4) marine research. Brief exploration activities are suggested through which students can learn more about the jobs. A chart is provided with notes on how various school subjects (home economics, English, social science, industrial arts, physical education, music, science, art, and mathematics) are related to the marine science cluster careers. A list of qualities needed for marine science careers and a list of sources for additional career information (professional associations and specific government bulletins) are included along with a vocabulary list and questions to aid student decision making. The text is illustrated with drawings and photographs. (JT)