Physical sciences is a broad academic and research field dedicated to the systematic study of non-living systems. This encompasses the investigation of matter, energy, fundamental forces, and natural phenomena through empirical observation, experimentation, and mathematical modeling. Key characteristics include reliance on quantitative measurement, testable hypotheses, and predictive theories. Its significance lies in providing foundational knowledge about the physical universe, ranging from subatomic scales, such as nuclear reactions powering stars or reactors, to cosmic structures, and in driving technological advancements across various domains.