Blackboard ‘chalk’ are produced especially for use with blackboards in white and also in various colours. White chalk sticks are made mainly from calcium carbonate derived from mineral chalk rock or limestone, while colored or pastel chalks are made from calcium sulfate in its dihydrate form, CaSO·2HO, derived from gypsum. Chalk sticks containing calcium carbonate typically contain 40–60% of CaCO (calcite). As compared to whiteboards, blackboards still have a variety of advantages: On the other hand, chalk produces dust, the amount depending on the quality of chalk used. Some people find this uncomfortable or may be allergic to it, and according
FADS Fun Sticks FADS Fun Sticks FADS Fun Sticks, formerly known as FAGS, and later FADS, are a brand of candy cigarette made by "Riviera Confectionery" (a division of "Fyna Foods Australia") in Victoria, Australia. First produced as FAGS (formerly used as Australian slang for cigarettes) in 1943, during the 1990s, the product was renamed FADS amidst concerns of it promoting smoking to children, as well as pejorative connotations of the word. During the 2000s, "Fun Sticks" was added to the name to further distance the product from its connection to cigarettes. The original candies were modelled after cigarettes, thin white sticks with