Drop 5 marbles into the graduated cylinder. Write your name on a piece of paper and then write a description of what you observed. Write your estimation of how many marbles you think can be dropped into the graduated cylinder before the water will overflow. Fill a graduated cylinder half full of water. Put the cylinder in the pan to catch the water when it overflows.
Drop marbles into the cylinder until it overflows.
Write down the number of marbles it actually took to make the water overflow. Put your paper in the folder.