Final answer:
The process is called displacement and it measures the change in water level when an object is placed in a graduated cylinder of water.
Step-by-step explanation:
The process of measuring how much the water level changes when an object is placed in a graduated cylinder of water is called displacement. It is based on Archimedes' principle which states that the buoyant force on an object submerged in a fluid is equal to the weight of the fluid displaced by the object. By measuring the change in water level, we can determine the volume of the object.
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