Convection
You are probably thinking of convection, which is transfer of heat by currents set up by variations in density of the liquid.
The process of passing liquid through a porous filter is called filtration. This method is used to separate solid particles from liquid by trapping them in the filter while allowing the liquid to pass through.
Heat transfer in gases is called convection. It is the process by which heat is transferred through the movement of fluid (gas or liquid) particles. Convection occurs when hot air rises and cold air sinks, creating circulation and transferring heat in the process.
This process is called condensation.
convection
To change a gas to a liquid, you condense it.
A gas changes to a liquid through condensation.
When the temperature decreases, liquid turns into solid through a process called freezing.
Forces can be transferred in a liquid because liquids are considered to be continuous and deformable materials. When a force is applied to one part of a liquid, it causes the liquid molecules to transmit the force throughout the entire liquid volume through pressure. This allows the force to be transferred from one point to another within the liquid.
The water cycle. The liquid water is condensation.
through a process called evaporation, when the liquid is turned into a gas because something like heat
This technique is called filtration or decanting, depending on how you do it.