The unit, designed for elementary students and built on inquiry-based principles, looks at water as a resource, the water cycle in nature, as well as water pollution. Through a series of experiments, elementary students will gain awareness of water as a natural resource, develop an understanding of the water cycle in nature, and become familiar with major global issues related to water pollution, as well as water use and misuse. Although focused on science, the unit is interdisciplinary in means and purpose. Aside from conducting scientific investigations and discussions, the students will read a variety of texts and focus on such skills as comparing and contrasting, summarizing, and determining cause-effect relationships. Math skills, such as measurement, addition and subtraction, problem solving, averaging, and interpreting and representing data in bar graphs will be reviewed or taught during this unit. The students will also work in learning centers on projects involving social studies skills: we will discuss oceans, lakes, and rivers, as well as environmental concerns. This unit will provide great opportunities for cooperative learning activities, as well as discovery learning. The students will be able to learn through investigation and experimentation, and will develop an enduring understanding of water in nature and global environmental concerns.