This teaching guide suggests practical ideas for encouraging science talent in preschool children. It is part of a series of similar guides developed by the RAPYHT Project (Retrieval and Acceleration of Promising Young Handicapped and Talented) for educating young gifted/talented handicapped children and gifted children with no handicaps. A list of characteristics demonstrated by children with high potential for scientific talent is followed by suggestions on how to help children see science as a process and learn to approach scientific investigations in a systematic manner. The suggested system of investigation stresses the following skills: careful observation, asking thoughtful questions, hypothesizing answers to problems, gathering information, recording findings, applying information and communicating information to others. A list of possible materials and equipment sources and a bibliography of children's science books are provided. The final section of the guide suggests activities which will help the talented child develop the basic skills in scientific investigation which were identified in the previous section. An extensive annotated list of resources is also included. (CM)