Geology
The study of the origin, history, and structure of the Earth.
What is a Geologist • A geologist is a scientist who studies the solid and liquid matter that constitutes the Earth and terrestrial planets. Geologists usually engage studying geology, and approach this using physics, chemistry and biology as well as other sciences.
Earth’s History
layers of the Earth
Recent Breakthrough • The most significant advance in 20th century geology has been the development of the theory of Plate tectonices in the 1960s. • Plate tectonics - Describes the large scale motions of Earth's lithosphere.