Water covers these water is a liquid with certain properties, water exists in three forms in nature, cold changes water from a liquid to a solid, heat changes water from a liquid to a gas, water can change from a gas to a liquid, the changes water makes are part of a cycle, people need water to live, and moving water can do work. A variety of engaging activities present the concepts in ways that students can understand. Each concept presented teacher directions for lessons and reproducible resource pages such as sets of picture cards, minibooks, and lab sheets to record the results of hands-on investigations