Janice found two sea shells when she went to the beach. They appear to be almost the same size, but they have different shapes. How could she figure out if their volume is the same?

A)Weigh each one on a scale to see which is heaviest.
B)Fill each one with water to see which will hold the most.
C)Drop each one in a beaker of water to see which raises the water level the most.
D)Measure the length of each one with a measuring tape to see which is longest.

D

To figure out if the two sea shells have the same volume, Janice can use option B) Fill each one with water to see which will hold the most. Here's how she can do it:

1. Find a container that can hold water and is deep enough for the sea shells to be fully submerged. A transparent container such as a measuring cup or a beaker is preferable so that Janice can easily observe the water level.

2. Fill the container with water up to a certain level, making sure to avoid any overflow when the sea shells are placed inside.

3. Carefully place one of the sea shells into the water, ensuring that no water spills out of the container. Allow the shell to fully submerge and settle.

4. Observe the change in the water level after the shell is submerged. Take note of the new water level.

5. Remove the first sea shell from the container and drain any water remaining in it.

6. Repeat the process using the second sea shell, making sure to start with the same initial water level as before.

7. Again, observe the change in the water level after the second sea shell is submerged and note the new level.

8. Compare the changes in the water levels for both sea shells. If the changes are equal or very close, then it is likely that the volumes of the two sea shells are the same.

By comparing the amount of water displaced by each shell, Janice can determine if their volumes are the same or not. The shell that displaces more water will indicate a greater volume.