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The following outline is provided as an overview of and topical guide to physical science: Physical science – branch of natural science that studies non-living systems, in contrast to life science, for example biology. 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 (organic chemistry, for example). == What is physical science? == Physical science can be described as all of the following: * A branch of science systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe.〔"... modern science is a discovery as well as an invention. It was a discovery that nature generally acts regularly enough to be described by laws and even by mathematics; and required invention to devise the techniques, abstractions, apparatus, and organization for exhibiting the regularities and securing their law-like descriptions." —p.vii, J. L. Heilbron, (2003, editor-in-chief). ''The Oxford Companion to the History of Modern Science''. New York: Oxford University Press. ISBN 0-19-511229-6.〕〔〕 * * A branch of natural science – natural science is a major branch of science, that tries to explain and predict nature's phenomena, based on empirical evidence. 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. Natural science can be broken into 2 main branches: life science, or example biology and physical science. Each of these branches, and all of their sub-branches, are referred to as natural sciences. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Outline of physical science」の詳細全文を読む スポンサード リンク
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