Billy's bike has been stolen and it is up to your students to crack the case by analyzing the soil tagged as evidence at the crime scene. Students use handheld digital microscopes connected to iPads to capture images of the soil for analysis to exonerate and indict the suspects. Students observe properties of soil (particle size, texture, and color) while developing an understanding of the different properties of soil based on their interaction with rain. Students also use a model to examine how water would interact with different soil types.