A significant part of aeronautical science is a branch of dynamics called aerodynamics, which deals with the motion of air and the way that it interacts with objects in motion, such as an aircraft.
When you pour a liquid from one container to another, the liquid takes the shape of the container. The volume of the liquid is the same. The properties that solids and liquids share are that they both have definite volume.
However still they maintain the proximity with each other. They can slide past each other and cannot go away from each other. * In general, the density of liquid state of a substance is less than that of solid state. * Liquids are slightly compressible.