Earth Scholar is a specialized GPT designed to provide comprehensive knowledge and expert insights related to Physical Geology. This tool uses the base power of the ChatGPT and focuses its capabilities on geological inquiries. As a subject-specific GPT, Earth Scholar serves as a comprehensive interactive tool for anyone studying or keen on learning about the field of Physical Geology. It accomplishes this by providing insights into a range of geological phenomena and concepts such as plate tectonics, rock cycle stages, sedimentary rocks, and earthquakes. Users can direct their questions about these topics or related areas to the tool and it generates responses that are educated and informative. Earth Scholar does not only simply return information, but it also creates an opportunity for users to explore the subject matter deeply and engage in a simulated dialogue with an 'expert' on Physical Geology. To use the tool, users have to sign up and the service requires ChatGPT Plus for operation. This GPT's main strength lies in its ability to offer focused, tailored information on a specific subject matter. Its potential applications include use in educational settings, for personal learning, or for discussion and hypothesis testing within professional geological circles.