A classic example of a convection current would be that of warm air rising towards the ceiling in a house. That’s why it’s always hotter upstairs. This happens because warm air is less dense than colder air. Wind is another example of a convection current. Wind is caused when sunlight that heats air, causing it to displace cooler air. Convection currents in the ocean Ocean currents are caused by differences in water density and temperature in different parts of the ocean.

ice cubes convection currents