In Mabel Mouse and Breezy Bird Learn About Tap Water Quality: It’s Good!, two friends are determined to find out where their drinking water comes from. Together, Mabel and Breezy head out to their local water filtration plant where they meet their guide, Bo the Bear. Bo takes them through the plant where they discover how raw water, which is natural water found in the environment and has not been treated, nor have any minerals, ions, particles or living organisms removed. Raw water includes rainwater, ground water, water from infiltration wells, and water from bodies like lakes and rivers, passes through screens and filters and is then disinfected with chlorine as it becomes potable tap water. After the tour, Mabel, Breezy, and Bo go out to lunch and see first-hand that tap water is not only clean and safe to drink but that it tastes good, too! This story explains the filtration process of raw water as it becomes tap water, in a way that students can understand. It also demonstrates that being inquisitive is worthwhile and that a little bit of investigation can open the way to a wealth of knowledge.