In 1965 the International Association for the Evaluation of Educational Achievement (IEA) inaugurated a cross-national survey of achievement in six subjects: Science, Reading Comprehension, Literature, English as a Foreign Language, French as a Foreign Language, and Civic Education. The overall aim of the project was to use international tests in order to relate student achievement and attitudes to instructional, social, and economic factors, and from the results to establish generalizations of value to policy makers worldwide. Contained here are three Science Questionnaires surveying the following information for the following student populations: Science Questionnaire measuring background in Science (populations II and IV); and two Science Attitude and Descriptive Scales measuring the part Science plays in the students' lives (populations I,II,IV). Population I consists of students aged 10 to 11 years; population II, 14 to 15 years; and population IV, students enrolled in the final year of pre-university training. Answer keys and statistical data can be found in ED 081 639. (RC)