Water Displacement

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Volume Noun

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[vol-yoom]

Back

Volume

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The amount of three-dimensional space that a substance or an object occupies, measured in units like milliliters or liters.

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Example: This image shows how to calculate the volume of a regular 3D shape, a rectangular prism, by multiplying its length, width, and height.

Front

Displacement Noun

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[dis-pleys-muhnt]

Back

Displacement

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The action of an object pushing a fluid out of the way, causing the fluid level to rise.

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Example: Placing an object into water pushes the water level up; the volume of water that is pushed aside is equal to the object's volume.

Front

Water Displacement Method Noun

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[waw-ter dis-pleys-muhnt meth-uhd]

Back

Water Displacement Method

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A technique for measuring an object's volume by submerging it in a liquid and measuring the volume of displaced liquid.

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Example: This image shows that placing an object into a graduated cylinder of water causes the water level to rise, demonstrating the water displacement method.

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Graduated Cylinder Noun

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[graj-oo-ey-tid sil-in-der]

Back

Graduated Cylinder

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A tall, cylindrical piece of laboratory equipment used to accurately measure the volume of a liquid, marked with graduated lines.

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Example: This diagram shows how to find the volume of an irregular object. The rise in water level in the graduated cylinder equals the object's volume.

Front

Meniscus Noun

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[muh-nis-kuhs]

Back

Meniscus

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The curved upper surface of a liquid in a tube, from which accurate volume measurements should be read at its bottom.

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Example: This diagram shows the meniscus, the curved surface of water in a cylinder, and the correct eye-level position for an accurate volume reading.

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Milliliter (ml) Noun

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[mil-i-lee-ter]

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Milliliter (ml)

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A metric unit of volume equal to one-thousandth of a liter, commonly used for measuring liquids in scientific experiments.

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Example: This diagram shows a graduated cylinder with water, teaching how to measure volume in milliliters (mL) by correctly reading the bottom of the meniscus.