What is convecntion?

Answer 1

Convection is when heat causes a fluid to circulate around in a container.

i.e. the fluid is heated at the bottom > the hot fluid rises to the surface and cools > the cool fluid then sinks again > the fluid is heated... etc.

Answer 2

Convection is the transfer of heat through the movement of a fluid, such as a liquid or gas. It occurs when warmer, less dense fluid rises and cooler, more dense fluid sinks, creating a continuous circulation pattern that transfers heat. This process is commonly observed in phenomena like ocean currents, weather patterns, and boiling water.