Third graders became soil scientists by observing and testing different soil samples around the school campus. Students noted color, texture, and infiltration. They did a simple soil test to determine the main rock particles of each sample. After moistened, if the soil would not make a ball we knew the main component was sand. If it formed a crumbly ball the main component was silt. A sticky ball that could form into a worm was mostly clay. Students also noticed if there was a high or low amount of organic matter present. Students identified organic matter in the garden soil and noticed it made the soil darker in color.