It is called "melting". It means that when a solid gets so hot, by the increase in Kinetic Energy that it contains, the atoms move around so much that the state of matter changes to a liquid, that is to say it undergoes a change of state. Further heating will change the liquid to a gas - another change of state.
gas to a liquid
The process is called a phase change or a change of state. This occurs when matter transitions from one physical state, such as solid, liquid, or gas, to another state due to changes in temperature or pressure.
Evaporation is the process where a liquid changes from its liquid state to a gaseous state, usually due to an increase in temperature. This occurs when the molecules of the liquid gain enough kinetic energy to escape into the air.
The process of a gas changing to a liquid is called condensation. This typically occurs when the gas is cooled or when pressure is increased.
It is a 'State' Change called Liquification, precipitation and other terms depending on the process that caused the state change.
If we take solid, liquid and gas being the three main states of matter (plasma being an arguable fourth), then from solid to liquid, the process melting occurs, from liquid to gas evaporation or boiling (they are different things) occur. Then from gas to liquid condensation occurs and from liquid to solid freezing occurs.
condensation
The process that occurs as matter changes state from liquid to gas is called vaporization. During this process, energy is absorbed by the liquid to overcome the intermolecular forces holding the molecules together, allowing them to move more freely and transform into a gas state.
gas to a liquid
The process is called a phase change or a change of state. This occurs when matter transitions from one physical state, such as solid, liquid, or gas, to another state due to changes in temperature or pressure.
You are adding heat/energy. It is melting.
The state of matter changes from liquid to gas through a process called vaporization. This occurs when the substance absorbs enough heat energy to break free from the forces holding its particles together in a liquid state and allows them to move freely.
Evaporation is the process where a liquid changes from its liquid state to a gaseous state, usually due to an increase in temperature. This occurs when the molecules of the liquid gain enough kinetic energy to escape into the air.
When a substance changes from a gas to a liquid state, it undergoes a process called condensation. This occurs when gas molecules lose energy and come together to form a liquid due to a decrease in temperature or an increase in pressure. Examples include water vapor condensing into liquid water when it cools down.
When water changes from a gas to a liquid it is still called water, but I don't think that was your question. The process of changing water, or any substance for that matter, from it gaseous state to it liquid state is called condensation,
This is called evaporation.
The process of a gas changing to a liquid is called condensation. This typically occurs when the gas is cooled or when pressure is increased.