The transition of a substance directly from the solid state to gas (such as dry ice to gas) is called "sublimation".
Sublimation
Sublimation
As the term solid ice cube suggests, it is a solid.
Process
this process is called evaporation
Somewhere between unlikely and impossible.
The term is "radioactive decay".
SUBLIMATION
The process in which a gas changes directly into a solid is called deposition.
sublimation
sublimation
Deposition is when a gas changes directly into a solid.
MELTING is the term for the process where water changes from a solid into a liquid.
The technical term for this is deposition (the opposite process is sublimation).
The word 'sublimation' can be used two different ways in relation to gas/solid phase changes.1- Sublimation is the direct conversion of a solid to gas.The reverse process, gas to solid, is referred to as deposition.2- However, the term 'sublimation' is also used for a process for purifying a solid by heating it in an apparatus to make it turn into a gas (sublimation) and then cooling the gas back to a solid on a special cold surface (deposition). The impurities are left behind and the purified solid is gathered from the collecting area.The whole process is referred to as 'subliming' or 'sublimation', with the 'deposition' part just accepted as part of the process. This technique dates back to the alchemists.So sublimation can mean:-the change of a solid to gas or-a purifying process that features both sublimation and deposition.The term 'sublimation' is not used to mean a gas to solid change all by itself.
This process is called melting.
melting
Physical change
Sublimation