Three large ice cubes float in bathtubs, each filled to the brim with water. Cube A has large air bubbles in it. Cube B has unfrozen water in it. Cube C has an iron railroad spike in it. When the ice cubes melt
A)water level in C decreases while water levels in the other two tubs remain the same.
B)only the water in C will spill over.
C)water level in A remains unchanged while the other tubs spill over.
D)all tubs spill over.
E)all levels remain the same.

Question

Quizplus · Accepted Answer

When the ice cubes melt, the water level in the tub with the iron railroad spike (C) will decrease because the spike displaces water. The water levels in the other two tubs will remain the same because the air bubbles and unfrozen water in cubes A and B will occupy the same volume as the melted ice.

Three Large Ice Cubes Float in Bathtubs, Each Filled to the Brim