Everyone uses the restroom, but did you ever stop to think what happens to your waste after you flush the toilet? What Happens When You Flush? provides students a comprehensive look at where sewage goes and how it is treated in our communities. A thought-provoking topic and interesting facts will keep students engaged in this book while also giving them a chance to summarize and determine the author's point of view. The book and lesson are also available for levels O and U.