Forming bubbles is a term that describes the process of the formation of small air pockets in a liquid, creating a foam-like substance. The act of forming bubbles can be described using several other synonyms such as froth, foam, lather, suds, and fizz. Froth resembles bubbles that form atop liquids, such as beer or coffee, as a result of agitation or carbonation. Foam also refers to a frothy substance that is formed by a combination of gas and liquid. Lather is a term that describes the bubbles formed on soap and shampoo when they are used to clean surfaces. Suds typically refers to foam or froth that is formed by the mixing of soap and water. Fizz describes the bubbles that form due to carbon dioxide trapped in beverages such as soda or sparkling water.