The temperature increase.
hot air rises because molecules of air move quicker
The temperature of a body depends on the amount of movement of the molecules it is made of. When the molecules move about quicker the body heats up and the temperature rise. When the molecules move about less the temperature falls. Absolute zero temperature is when the molecules have stopped moving altogether.
the heat gives the molecules more energy to move around and rise.
Rise
the higher the temperature the higher the solubility and vice-versa.
the song seems to be Xpansions- Move your body (higher) Elevation.. stumbled over it on youtube
if you boil something the particals start to move rapidly. And it moves so fast it rises.
the warm air's particles are more spread out so they rise up and have the face filled by the molecules in the cold air which are closer together. also warm air's molecules move faster than cold air
You are describing convection.
rise
Heat speeds up molecules, this causes the particles to rise
The molecules/atoms move far apart. As the separation between paricles increase, the state is changed. The temperature does not rise because the heat is used to overcome inter-molecular forces.