400
Suppose you have 40 mL of water in a graduated cylinder. After you place a marble in the cylinder, the water
level rises to 68 mL. What is the volume of the marble?Explain how you know.
28 mL or 28 cubic centimeters
The water began at a volume of 40 mL, then rose to 68 mL. The difference between the two volumes is 28 mL or 28 cubic centimeters (68 - 40 = 28).