What is the primary use of a beaker in scientific experiments?

The primary use of a beaker in scientific experiments is to measure volume. Beakers are cylindrical containers with a spout for easy pouring, and they are calibrated with markings that allow for approximate measurement of liquids. While they are not the most precise measuring devices compared to graduated cylinders, beakers are commonly used in laboratories for mixing, heating, and holding liquids, as well as for demonstrating reactions and processes where exact measurements are not critical.

Additionally, they can be used for stirring liquids, but that is not their primary function; rather, it is more of a secondary use. Beakers are not designed for filtering substances, which typically involves using a filter or a funnel, nor are they intended for measuring temperature, which requires a thermometer. Their main purpose is to provide a versatile container for liquids while offering a way to gauge the volume, making them an essential tool in scientific experiments.