If something can dissolve it is soluble if it cannot it is insoluble.
insoulble
This phenomenon is called deposition.
If you change a gas directly to a solid you call it condensation. This is the same word as the change from gas to liquid.
It is called a solvent, the substance being dissolved is a solute.
In a solution, there is what scientists call a solvent (the dissolving material) which is usually a luquid, and a solute (the material being dissolved) which is usually a solid. The answer you are looking for is "solute".
When liquid (water) turns into solid (ice), we usually call it freezing.
That transformation is called melting, when done by heat, or dissolving, when done by a solvent.
Simple: an insoluble material (in a given solvent, at a given temperature and pressure).
The name for solid water is ice. It changes to a liquid when it melts.
Call that process freezing.
This physical change is called freezing.
They are called the states of matter.
insoulble
WATER! If you put water in a cup and leave it in the freezer it will turn to an ice cube then if you leave it somewhere warm and cosy it will turn back to a liquid again. Try it for yourself even.
Ice is a solid and when melted it turns into a liquid freeze it again and it is solid
When a solid is heated and changes to a liquid, the phase change is called melting.
This phenomenon is called deposition.