The Connecticut Assessment of Educational Progress is a continuing program designed to measure objectively the adequacy and efficacy of the educational programs offered by the public schools. In 1979-80, students in grades 4, 8, and 11 were tested in science. Three goals were selected: (1) know the fundamental facts and principles of science; (2) apply the fundamental principles of science; and (3) understand and apply the processes of science. Grade 4 students answered correctly 69 percent of the items for goal 1; 52 percent of the items for goal 2; and 68.7 percent of the items for goal 3. Grade 8 students answered correctly 62.5 percent of the items for goal 1; 56.9 percent of the items for goal 2; and 67.4 percent of the items for goal 3. Grade 11 students answered correctly 55.5 percent of the items for goal 1; 49.4 percent of the items for goal 2; and 64.4 percent of the items for goal 3. Results are also reported comparing Connecticut with the nation and the northeast region, comparing the 1979-80 results with 1974-75 results; and comparing total test achievement of selected groups of Connecticut students. The results from a student attitude questionnaire are also reported. (Author/BW)