Answer:
The kinetic theory of matter
Explanation:
The kinetic theory of matter states that the atoms of every matter are in continuous constant motion. forms of matter can be grouped solid, liquid or gas. The molecules of a solid vibrate about their mean position. The molecules of liquid vibrate and can flow and they also take the shape of their container. The molecules of a gas are in constant random motion and collide with each other and with the walls of their containing vessel.
