Pure water is a clear, colorless liquid that is essential for all forms of life. It is composed of two hydrogen atoms and one oxygen atom, giving it the chemical formula H2O. Pure water does not contain any impurities, such as minerals, salts, or contaminants, making it safe for drinking and various scientific applications. In nature, pure water is rarely found in its unadulterated form. It can be produced through processes like distillation or reverse osmosis, which remove unwanted substances. Pure water is crucial for hydration, cooking, and industrial processes, and it serves as a universal solvent, meaning it can dissolve many substances.