The liter (L) is a metric unit for measuring the volume of a liquid. The liter is divided into 1000 units called milliliters. The milliliter (abbreviated mL) is 1/1000th of a liter. Use a plastic syringe with marks . Observe the surface of the waterwhen you fill the syringe with water. Is the surface of the water curved or flat?The slightly curved surface is called the meniscus.Usually the surface of water in a glassgraduated cylinder is curved. If the cylinderis plastic, the meniscus is flat. Observe if the surface of water in the syringe is curved or flat. An instrument such as a syringe withregular markings to measure volume is called agraduated cylinder.
The correct way to read the volume of a liquid is to hold the graduated cylinder with the meniscus at eye level as shown in the drawing. Always read the level of the liquid at the bottom of the meniscus.
Measuring the volume of water with a graduated cylinder is more accurate .
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