Water covers these concepts: 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 moving water can do work A variety of engaging activities present the concepts in ways that students can understand. Each concept presented includes: teacher directions for lessons reproducible resource pages such as sets of picture cards, minibooks, and lab sheets to record the results of hands-on investigations This resource contains teacher support pages, reproducible student pages, and an answer key.