An introduction to geologic principles and the processes shaping planet Earth. Composition and distribution of earth materials; examination of internal processes and their relationship to the distribution of continents over time; surficial processes and environmental problems. Meets GOAL 3. Includes laboratory simulations and/or field experiences. Grade only. Offered each semester. Note: Students may enroll in either GEOS 120 - Dynamic Earth with Laboratory or GEOS 121, but they cannot earn credit for both courses.