In this lesson, student groups create "mystery mud pies" - soil samples of different textural categories - by using pure particle size samples, mass balances, and applied math. They then rotate through the other groups' samples, practicing their hand texturing skills to "solve" the mystery of the other groups' samples' textures. This lesson has students thinking, consipiring, creating, moving, and deducting!Add on activities and simplifications are included within the lesson plan, as are the w