It is not to be confused physical science dictionary pdf Physics. Physical science is a branch of natural science that studies non-living systems, in contrast to life science.
It in turn has many branches, each referred to as a “physical science”, together called the “physical sciences”. However, the term “physical” creates an unintended, somewhat arbitrary distinction, since many branches of physical science also study biological phenomena and branches of chemistry such as organic chemistry.
In natural science, hypotheses must be verified scientifically to be regarded as scientific theory. Validity, accuracy, and social mechanisms ensuring quality control, such as peer review and repeatability of findings, are amongst the criteria and methods used for this purpose.
Each of these branches, and all of their sub-branches, are referred to as natural sciences. More broadly, it is the general analysis of nature, conducted in order to understand how the universe behaves. Earth, including supernovae explosions, gamma ray bursts, and cosmic microwave background radiation. In this realm, chemistry deals with such topics as the properties of individual atoms, the manner in which atoms form chemical bonds in the formation of compounds, the interactions of substances through intermolecular forces to give matter its general properties, and the interactions between substances through chemical reactions to form different substances.
It includes the study of the atmosphere, hydrosphere, lithosphere, and biosphere. It in turn has many branches, each referred to as a “physical science”, together called the “physical sciences”.