About the Dirty Clues Lesson
In this lesson, students compare soil samples from the tires of a truck to samples from various locations and from a pair of boots. By observing soil components under a microscope, they determine the location of the samples and solve the crime.
• Students will observe several soil samples, describe them, and decide if two came from the same location.
Soil can serve as valuable evidence in a criminal case. Soil at a crime scene can be transferred to other locations while on clothing or on vehicle. That is how soil can provide a link between a crime scene and a suspect.