Volatility (chemistry) Volatility (chemistry) In chemistry and physics, volatility is quantified by the tendency of a substance to vaporize. Volatility is directly related to a substance's vapor pressure. At a given temperature, a substance with higher vapor pressure vaporizes more readily than a substance with a lower vapor pressure. The term is primarily written to be applied to liquids; however, it may be used to describe the process of sublimation which is associated with solid substances, such as dry ice (solid carbon dioxide) and osmium tetroxide (OsO), which can change directly from the solid state to a vapor, without becoming liquid. The
Education sector responses to substance abuse sexual health, nutrition and bullying. In a curriculum, substance use prevention education is usually and most appropriately accommodated in a health-related subject area (variously termed healthy active living, health and family living, health and physical education, personal and social skills education, health and career education, life-skills education, etc.). Many schools choose also to supplement or replace the standard life-skills or other health-related curriculum with a manualized programme, i.e., a programme standardized through the creation of manuals and protocols for those who implement it. This has been shown by research to be effective in preventing substance use later in life and/