Physical Chemistry is the application of physical principles and measurements to understand the properties of matter, as well as for the development of new technologies for the environment, energy and medicine. It is the study of how matter behaves on a molecular and atomic level and how chemical reactions occurs. It is used in different areas, but the main goal is to discover, test, and understand the fundamental physical characteristics of a material—be it solid, liquid, or gas. Physical chemistry requires significant mathematical and statistical understanding, and that combination is valuable in many industries that have large data sets that need to be mined for information. Computational modelling is an application of physical chemistry and involves quantifying and predicting how materials will function. The pharmaceutical and materials industries especially conduct significant amounts of molecular modelling, but an advanced degree is usually required for this work.