It's called "displacement".
If the water tank is above the solar collecting panels, then the hot water rises into the tank by itself and colder water flows down into the panels.
Cold water sinks, hot water rises.
Think of a pot of boiling water. The burner makes the heat, the heat rises, and the cold water replaces it, then the cold water gets hotter and rises. It's a cycle
Think of a pot of boiling water. The burner makes the heat, the heat rises, and the cold water replaces it, then the cold water gets hotter and rises. It's a cycle
Ice, it rises till it floats.
water vapor
Displacement
It's called "displacement".
Buoyancy.
Tidal movements
Tides
I believe it is called an "Antipodal Spike".
if the water rises above the surface without any help, it's an artesan well
When yeast dough rises, the process is called rising or leavening. The first phase of rising, when yeast is dissolved in warm water and sugar until it foams, is called proofing.
Water that rises and covers land is a flood.
The water vapour rises to form clouds.