What term is used to describe large glass, plastic, or steel containers that range in volume from 5 to 15 gallons?

The correct term for large containers, typically made of glass, plastic, or steel, with a volume ranging from 5 to 15 gallons is "carboys." Carboys are specifically designed to hold liquids, and they often feature a narrow neck that makes them suitable for laboratory or industrial use. They are commonly used in chemistry and fermentation processes due to their ability to contain volatile or sensitive substances securely.

While "barrels," "tanks," and "drums" are other types of containers used for storage, they differ in their sizes and uses. Barrels are usually larger than 15 gallons and are often used for storage of liquids such as oil or whiskey. Tanks can vary widely in size and are generally larger and more permanently installed, making them less specific than carboys. Drums typically refer to cylindrical containers, usually larger than the 5 to 15-gallon range, and are often used for industrial applications. In this context, carboys are more accurately defined by their specific size and design, making them the correct answer.