The present text seeks to understand how experiments in geophysics are presently being conducted, especially as an issue like global warming occupies much of the world's attention. Geophysics is used to reduce risks from earthquakes, volcanic eruptions and landslides. It is used to find natural resources such as water, minerals, geothermal energy and fossil fuels, and to monitor environmental problems such as groundwater pollution. Energy, in physics, the capacity for doing work. It may exist in potential, kinetic, thermal, electrical, chemical, nuclear, or other various forms. There are, moreover, heat and work-i.e., energy in the process of transfer from one body to another. After it has been transferred, energy is always designated according to its nature. Hence, heat transferred may become thermal energy, while work done may manifest itself in the form of mechanical energy. This book is suitable for geophysicists, geologists, scientists, universities, organizations, teachers, students and other working in different disciplines of petroleum science and engineering