The Standard Model is a quantum field theory that describes the fundamental particles and three of the four fundamental forces—electromagnetism, the weak nuclear force, and the strong nuclear force—in terms of their interactions. It successfully classifies the elementary constituents of matter, including quarks and leptons, and specifies how these particles interact through force-carrying mediators, such as the photon and gluons. The model is highly predictive and has been rigorously tested through high-energy experiments, providing a deep understanding of particle behavior within atomic nuclei and the universe at extremely small scales. While it represents a powerful framework for modern physics, it does not account for gravity, nor does it explain all observed phenomena, suggesting the need for extensions beyond its current scope.