Stratigraphy - Layers of Time in the Earth
This science lesson introduces students to the concept of stratigraphy as a historical and geologic process and helps explain soil formation and the impact of floods on a watershed. The lesson is based on the deeply stratified Richard Beene site on the Medina River near San Antonio. Suggested for grades 11 and 12 but suitable also for lower grades.
View TEKS and download page.