Eleven lessons for use in junior high school science present two major themes: (1) the use of tobacco, alcohol, and narcotics represents a serious danger to the health of individuals and to national welfare in general; and (2) the best way to combat dangers involved in the use of tobacco, alcohol, and narcotics is through an educated public. Each lesson is accompanied by references to texts and visual aids, learning activities, teacher information, and assessment items. The eleven lessons are: "Stimulants and narcotics are habit-forming drugs; The use and abuse of drugs has brought about the need for legal controls; Nicotine contains many harmful chemicals; Smoking irritates the eyes, reduces appetite, affects digestion, causes shortness of breath, and lowers endurance; Many studies exist which indicate that smoking may encourage the development of cancer in the lungs and other respiratory difficulties; Alcohol, acting as a depressant, affects the nervous system, slows down reaction time, and causes loss of coordination; Regular and excessive drinking of alcohol may result in a disease called alcoholism; Narcotics should be used only as prescribed by a physician; Victims of a drug habit become physically and mentally ill; The use of drugs is one of the most difficult habit to break; and A concerned person takes care of his body at all times." (JG)