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.
What are types of liquids? A liquid is a state of matter with properties midway between gases and solids. Liquid molecules have less mutual attraction than those of solids and more mutual attraction than those of gases, which is why a liquid is not quite a solid, yet is still firmer than gas.