As shown on the History Channel, "How the Earth Was Made: America’s Ice Age" examines how glaciers and climate change shaped modern North America over the last two million years. The documentary explains key Earth science concepts including ice sheets, glaciation, moraines, striations, sediment cores, ice cores, sea-level change, and erosion. It shows how scientists use geological evidence to trace falling temperatures, repeated glacier advance and retreat, and the formation of major landforms such as the Great Lakes, Niagara Falls, and the modern Mississippi River. The episode also connects Ice Age sea-level shifts to the Bering land bridge and early human migration, while highlighting how melting ice continues to affect coastlines, freshwater resources, and climate patterns. This content strongly supports school curricula in Earth science, geology, climatology, geography, and environmental studies. Part of the "How the Earth Was Made" series.