A laboratory beaker is a cylindrical container used in scientific experiments to hold, mix, or heat liquids. Typically made of glass or plastic, beakers come in various sizes, often marked with measurement lines for easy volume estimation. They usually have a spout for pouring and a flat bottom for stability. Beakers are essential tools in many fields, including chemistry and biology. They are often used alongside other laboratory equipment, such as pipettes and test tubes, to conduct experiments and prepare solutions. Their design allows for easy observation of contents and safe handling during experiments.