Unit 13 Contents

5. Why do you think there was such a big difference between Rosa's estimate with connecting cubes and the actual volume using water and the graduated cylinder?
1. Luis's group used centimeter cubes and estimated the volume of the container to be 130 cubic centimeters. They had a 100 cc graduated cylinder to find the actual volume. After they filled their container they carefully began pouring the water into their graduated cylinder. They filled the graduated cylinder 3 times. On the third time the water level was at 58 cubic centimeters. What is the actual volume of their container?
2. Show or tell the strategy Luis's group used to find the total actual volume.

Check-In: Questions 7–8

7. Find the volume of several containers. First estimate the volume of each container by filling it with centimeter cubes. Then find the actual volume of each container using the graduated cylinder. Measure the volume of each container to the nearest cubic centimeter. Make a table like the one below to record the volume of each container.

8. Explain why using a graduated cylinder and water to find the volume of containers is more accurate than using centimeter connecting cubes.