Physical science is a broad term that encompasses several subfields of science, including chemistry, physics, geology, and astronomy. These subfields are essential in understanding the natural world and the laws governing it. With that said, there are several synonyms used to describe physical science. Some of these synonyms include natural science, physical natural science, and empirical science. These synonyms describe a branch of science that studies the physical world, including its behaviors and properties. They are all intertwined, and understanding one aspect often leads to a better understanding of the others. In essence, physical science is an important field that drives several scientific advancements.