Glass beakers hold and transfer liquids, and are often used to mix samples. They have a wide mouth for easy filling and a spout that minimizes spilling when pouring. The wide, flat bottom stabilizes the beaker when handling or stirring contents. Graduated markings on the sides let you measure contents quickly. Glass is chemical and scratch resistant and doesn't absorb odors. Glass can be sterilized between uses and withstands higher temperatures than plastic, making it a good choice for applications where substances will be heated.