This manual is intended for use by second grade teachers as a guide for 35 activities for the study of the behavior of mealworms. The activities are intended to help instill in pupils a joy and excitement for inquiry and experimentation, plus an appreciation and understanding of basic scientific methods. Introductory subject material includes a description of the major processes of science, major units of study, and an outline of the behavior and characteristics of the mealworm. Reference lists include books for teacher and pupil use, audio-visual aids, and a list of useful equipment and supplies. This work was prepared under an ESEA Title III contract. [Not available in hardcopy due to marginal legibility of original document.] (PR)