The process of converting solid directly into gas without passing through the liquid state is called sublimation. This phenomenon occurs under specific conditions of temperature and pressure, allowing some substances to transition from solid to gas. Common examples of sublimation include dry ice (solid carbon dioxide), which converts directly into carbon dioxide gas, and snow or frost disappearing without melting. Sublimation is utilized in various applications, including freeze-drying food and in the manufacture of certain materials. Understanding this process is important in both scientific research and practical applications across different industries.