There are four major areas in Earth science. Astronomy is the study the materials that make up Earth and the processes that form and change these materials is known as geology. The study of Earth’s
includes the rocks that make up the crust and rigid, upper mantle. Earth’s hydrosphere is the system of all of the water on the planet.
All of Earth’s systems interact. You are part of the biosphere and you live on the crust, which is part of the lithosphere. You breathe the gases in that atmosphere and depend in many ways on the
Section 1.1 Study Guide