Evaporation.
The word you are looking for is "dissolved." When a solid substance breaks down into individual molecules and is evenly spread out in a liquid, we say that it has dissolved in the liquid.
is when the solid is hard then the word is Melting to change to liquid
Sublimation. Sublimation is the process by which a solid changes directly to a gas without passing through the liquid phase.
Melting means the point at which a solid phase begins to change to a liquid phase. I.e. Water has a melting point of 32.1 Degrees Fahrenheit. At 32 it changes from the liquid phase to the solid phase. At 32.1 it reverses the process.
The word you are looking for is "dissolved." When a substance is dissolved, it has mixed into a liquid and become a uniform solution.
evaporate
Vaporization
The 7-letter word meaning to gradually break down is "dissolve." It refers to the process of a substance becoming incorporated into a liquid, leading to a gradual breakdown or disintegration. This term can also metaphorically apply to other gradual changes or reductions.
Liquid? maybe?
A liquid can also be called a fluid.
Soluble.
Soluble.
SUBLIMATION
The 9-letter word for materials or things is "substance." It refers to physical matter or the essential nature of something. Substances can be solid, liquid, or gas and are often characterized by their properties and composition.
Substance is a word that can be used for any type of matter. The substance in the jar was neither liquid or solid.
solidifying.
The word you are looking for is "liquid." Liquids have a definite volume but take the shape of their container.