This title introduces readers to the amazing paths a career in STEM has to offer where the underground is their office! The fields of seismologist, volcanologist, geothermal engineer, paleontologist, and speleologist are examined, as are the STEM techniques and technologies that are used in them. A fun STEM-related activity is included. Aligned to Common Core standards and correlated to state standards. Checkerboard Library is an imprint of Abdo Publishing, a division of ABDO.