Background Information The average kid chews about 200 pieces of gum every year. People chew that much gum without knowing the effects it can have on their mouth. The type of gum you chew does have an affect on your mouth, cinnamon gums can kill the bacteria living in the human mouth and reduces bad breath. Sweet gums can increase the cavity causing bacteria in your mouth. Therefore gum can change the environment of the human mouth and may also change the temperature. I am interested in seeing if four types of gum flavours will change the temperature of a person’s mouth. The types I will experiment with are; Ice Gum Flavour: Most ice gums are flavoured with mint flavours. The most common are peppermint, spearmint and wintergreen, but there are more than 20 types of mint growing around the world. Dentyne has created many intense mint flavours such as, "Peppermint", "Arctic Chill", "Spearmint", "Shiver Mint", "Vanilla Chill", "Cool Frost" and "Wild Winter". Fire Gum Flavours: Most “hot” or fire gum flavours are created with the spice of cinnamon. Sweet Gum Flavours: Dentyne Tango “Mixed Berry” is flavoured with berry fruit flavours and Sucralose (sugarless sweetener) Sour Gum Flavours: Sour gum flavours are created by mixing either acetic acid (vinegar) or citric acid with various other flavours such as apple or cherry to create sour flavours. FACT FLASH!!!! The world’s oldest piece of chewing gum is 9000 years old!