In science, pipettes are used to measure and transfer precise volumes of liquids. They are essential tools in laboratory settings for tasks such as preparing solutions, transferring reagents, conducting titrations, and handling biological samples. Different types of pipettes are used depending on the volume and precision required, such as micropipettes for small volumes (microliters) and serological pipettes for larger volumes (milliliters). Pipettes are crucial in chemistry, biology, medical research, and other fields where accurate liquid handling is needed.