Volume is defined as the amount of space taken up by a three-dimensional object.

Volume often refers to liquid volume, which is defined as the amount of space taken up by a liquid, which spreads completely to fill its container.

There several devices used for measuring volume:

• measuring spoons - tablespoon, teaspoon, 1/2 teaspoon, 1/4 teaspoon
• measuring cups
• graduated cylinders
• beakers

The U.S. Customary Units for measuring volume are cups,pints, quarts and gallons. The Metric System units are milliliters and liters.

When measuring a small liquid volume, such as a dosage of cough syrup, the best unit to use is milliliters.

A slightly larger volume, like the amount of flour or sugar needed to make a cake, would be measured using cups. A liquid volume of this size, such as heavy cream used in baking, would be measured using pints.

The volume of a large amount, for example soda in a bottle or milk in a carton, can be measured using liters or quarts.

A very large liquid volume, such as an aquarium, would most likely be measured using gallons.