The Regents competency test in science is a survey test of the core process skills and core understandings taken from the 10 blocks of the "Science Syllabus for Middle and Junior High Schools." The life, earth, and physical sciences are covered equally. Questions testing knowledge (recall and recognition), comprehension, application, and the process skills are included. This publication provides information that public and nonpublic schools will need to prepare for the first administration of the test in June of 1988. The information includes: (1) a description of the test; (2) a brief discussion on improving the science 7, 8, and 9 program; (3) comments on the core process skills; (4) a process scheme and program implementation matrix; (5) comments on core concepts and understandings; and (6) core understandings and program implementation checklist for the 10 blocks. These blocks (labeled A through J) are: living systems-organisms; living systems-human systems; living systems-microorganisms; the earth's changing surface; weather and climate; astronomy and aerospace science; energy and motion; energy-sources and issues; and science, technology, and society. (JN)