Science is not just a subject in school. It is a method for studying the natural world. After all, science comes from the Latin word "scientia", which means "knowledge". Science is a process based on inquiry that helps develop explanations about events in nature.

Physics is a branch of science that involves the study of the physical world: energy, matter, and how they are related. 

Physicists investigate the motions of electrons and rockets, the energy in sound waves and electric circuits, the structure of the proton and of the universe.

People who study physics go on to many different careers. Some become scientists at universities and colleges, at industries, or in research institutes. Others go into related fields, such as engineering, computer science, teaching, medicine, or astronomy.

In the last 50 years, research in the field of physics has led to many new technologies, including weather satellites, laptop computers, or lasers, satellite-based communications and high-speed microscanners used to detect disease.