This lesson plan is a FULLY scripted lesson on an introduction to the properties of rocks. It includes the learning targets, pre and post-assessment worksheet, and step-by-step instructions for the actual lesson. This lesson plan examines that rocks are earth materials with many properties in which they can be identified and organized. By sorting various rocks, students will be able to observe different properties. Students will use these observations of different properties to find similarities and differences between rocks. This lesson plan works directly with the Pebbles, Sand, and Silt FOSS kit.