Teams Galaxy and Storm welcomed Tammy Campbell from The Van Wert Soil and Water District into their rooms. Mrs. Campbell reviewed the water cycle and discussed the importance of clean water. She then introduced the class to an investigation entitled "Grave Mistake." The students pretended they were the doctor of a small village where some of the residents were being affected with what looked like arsenic poisoning. By the end of the presentation, the students were able to determine the source of the arsenic before they made a "grave mistake."