Liquids can be converted into solids by decreasing their _?

Explanation

liquids can be converted to solids by lowering their kinetic energy.When a liquid is cooled, its kinetic energy decreases, and the molecules move slower and closer together. At a certain temperature, called the freezing point, the kinetic energy of the liquid becomes low enough that the attractive forces between the molecules cause them to arrange themselves in a regular, crystalline structure, resulting in the formation of a solid. Lowering the potential energy of a liquid does not necessarily cause it to solidify. In fact, many liquids have lower potential energy than their corresponding solids. For example, water has a lower potential energy as a liquid than ice, which is why water freezes when its kinetic energy is lowered by cooling. Similarly, many metals have lower potential energy as liquids than as solids, which is why they can be melted by heating.