Introducing science inquiry early in young children's education is imperative, and providing opportunities for conducting investigations that develop process skills can lay a foundation for later learning. Combining inquiry-based instruction with appropriate technology allows the students to explore, reason, test, and revise their ideas about science concepts. If one goal of science education is to help students become comfortable using science and scientific process skills in their daily lives, technology-related opportunities prove invaluable. Technology and visual representations offer ways to engage students in active inquiry. In this article, the authors describe how students used planetarium software to gather data about the Moon. (Contains 5 figures and 2 resources.)