This Child Development Associate (CDA) training module helps interns develop children's science exploration and discovery skills. This process of discovering is known as sciencing. Teachers can create the climate for discovery by becoming actively involved with the children, by sharing the children's natural curiosity about their environment, and encouraging them to use their sciencing skills in all settings of the total learning environment. Objectives are stipulated, activities for achieving each objective are suggested, and an assessment checklist is provided. A study guide emphasizes (1) goals and values of sciencing, (2) ways to initiate and integrate science experiences in the classroom, (3) teacher guidelines for science experiences, (4) construction of a science center, and (5) sciencing in settings other than the science center. Resources for further study are listed. Supplementary related activities, an inventory of materials and equipment, ideas for discovery boxes, sample science unit lesson plans, stories and references for children, and a list of science books are included. (Author/RH)