地球科学涉及随着时间推移地球的物理，化学和生物过程的研究。学习地球科学的学生会在环境，工程，采矿，教学，勘探和地球物理学领域以及水文学，空间科学和海洋学领域找到机会。达特茅斯地球科学系（EARS）致力于研究我们所生活的自然世界。与紧密的教师合作，学生可以在“环境地球科学”的广泛类别下参加课程并从事研究。EARS中的研究将野外研究与基于实验室的理论研究结合起来，这些研究涉及通过地质时间影响地球表面的基本过程。在系研究和生活中，本科生在系中扮演着重要的角色。
Earth Science involves the study of physical, chemical, and biological processes on Earth and other planets over time. We study not only rocks and minerals, but also rivers and oceans, ice and snow, and the atmosphere and climate. We are interested in the origins of the solar system, in the internal processes of planetary bodies, in the evolution of life on Earth and other planets, in understanding processes occurring on Earth today and in the distant past, and in understanding what lies ahead for the future of our planet. Earth Scientists explore, understand, and monitor the Earth to protect it and the people who live on it. Our students find employment in a wide array of professions, including law, business, policy, writing, education, medicine, science, art, and engineering. A background in Earth Science is unique in that it combines many fields into a unified physical science, as such, the study of Earth Science is a valuable addition to a wide variety of scientific disciplines. Dartmouth offers majors in Earth Sciences and Environmental Earth Sciences. These programs are intended to provide a background in Earth Sciences sufficient for graduate work or employment in the field. Other majors (e.g., Physics, Chemistry, Economics, Engineering, Biology, etc...) may be modified with Earth Sciences to provide a more interdisciplinary course of study.