PBS
Earth’s Ever-Changing Surface
The Grand Canyon formed between five and six million years ago, but is it still changing? Scholars explore 10 sites in the United States, including the Grand Canyon, to better understand the geoscience processes that formed these...
Curated OER
Geological Forces and Topography
Students discuss and research the Earth's geological processes. In this geology lesson, students study maps of Utah and the United States to learn about geological features. Students then complete the research cards for each area of...