The study of the Earth and the environment requires an understanding of the physical processes within and at the surface of the Earth. This book allows the student to develop a broad working knowledge of mechanics and its application to the earth and environmental sciences - providing the background necessary to study the professional literature. The mathematical background required is a first-year course in calculus - more advanced topics are introduced in the context of their applications. The book aims to develop an understanding of the physics for each topic in mechanics, to provide insight into a wide range of natural phenomena. The breadth of application, and the many worked examples and problems will lead both students and professionals to a better understanding of the physical systems at work in the Earth's crust and at its surface.