What are the applications of convection currents in water?

Question

Name 6, and its enough. Please help!

Answer 1

You get these currents when water is heated or cooled. The benefit is the circulation which speeds the distribution of heat to the desired place. Surely you can think of some examples, like cooking below boiling temperature without stirring, where all circulation is convective, and this circulation transfers heat more evenly to the food than would otherwise be the case, and speeds up and makes more efficient the heat transfer from the stove to the pot by removing heat from the bottom.

Ice cube making. Again, better heat transfer (out of the ice tray).

Hot water heating of a house without a circulation pump.

What happens in a hot water heater. Since the water that is heated at the bottom rises to the top, the output connection is placed at the top of the tank so hot water can be obtained before the whole tankful is hot.

Your turn.