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Water
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, and 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 and reproducible resource pages such as sets of picture cards, minibooks, and lab sheets to record the results of hands-on investigations