Introduce your students to the exciting world of geology with this no-prep, easy-to-teach assembly on the three main types of rocks. Perfect for Grades 2–3, this engaging PowerPoint explores how rocks form, how they’re classified, and what they reveal about Earth’s history. Students will discover:The three main types of rock: igneous, sedimentary, and metamorphicHow each rock type forms through heat, pressure, layering, or coolingExamples like granite, basalt, sandstone, limestone, marble, and