Final answer:
According to the kinetic-molecular theory, the volume of a liquid increases to fill a new container, while the shape of the liquid remains the same.
Step-by-step explanation:
According to the kinetic-molecular theory, the volume of a liquid increases to fill the new container, but the shape of the liquid stays the same. This is because the molecules of a liquid are close together and take the shape of the container they are in, but they are still able to move around freely. When the container is changed, the liquid molecules spread out to fill the new space, but maintain their arrangement and therefore the same shape.
Learn more about Kinetic-molecular theory and behavior of liquids