Crustal Evolution Education Project (CEEP) modules were designed to: (1) provide students with the methods and results of continuing investigations into the composition, history, and processes of the earth's crust and the application of this knowledge to man's activities and (2) to be used by teachers with little or no previous background in the modern theories of sea-floor spreading, continental drift, and plate tectonics. Each module consists of two booklets: a teacher's guide and student investigation. The teacher's guide contains all of the information present in the student investigation booklet as well as: (1) a general introduction; (2) prerequisite student background; (3) objectives; (4) list of required materials; (5) background information; (6) suggested approach; (7) procedure, recommending two-three 45-minute class periods; (8) summary questions (with answers); (9) extension activities; and (10) list of references. In this module students draw a profile of the sea floor using bathymetric data, identify which topographic elements are similar on many bathymetric profiles across a portion of the North Atlantic sea floor, describe relationships between sea-floor topography and earthquake epicenter locations, compare/contrast bathymetric profile features on a map, and compare distribution of earthquake epicenters on bathymetric profiles with those seen on a World Seismocity Map. (Author/JN)