PREPARED UNDER THE SPONSORSHIP OF THE SCIENCE CURRICULUM IMPROVEMENT STUDY, THIS TRIAL EDITION OF A STUDENT MANUAL FOR A UNIT ON ENERGY IS INTENDED FOR USE AT THE FIFTH AND SIXTH GRADE LEVELS. IT IS DESIGNED ESSENTIALLY AROUND PUPIL-CENTERED ACTIVITIES WHICH REQUIRE BOTH QUANTITATIVE AND QUALITATIVE OBSERVATIONS. THE ACTIVITIES IN PART I INVOLVE INVESTIGATIONS AND OBSERVATIONS DEALING WITH ICE CALORIMETRY, AND THOSE IN PART II INVOLVE ENERGY OF HEAT TRANSFER AND COMBUSTION. PARTS III AND IV OF THE UNIT ELABORATE UPON THESE IDEAS, MAKING USE OF MORE ADVANCED CONCEPTS. THE MANUAL PROVIDES SPACE FOR RECORDING DATA AND OBSERVATIONS AS WELL AS FOR STUDENT RESPONSES TO QUESTIONS. THIS DOCUMENT IS AVAILABLE FROM THE SCIENCE CURRICULUM IMPROVEMENT STUDY, UNIVERSITY OF CALIFORNIA, BERKELEY, CALIFORNIA 94720. (DH)