Convection currents are the result of uneven heating of water or air. These currents create some of our wind, weather, and ocean currents.
In order to demonstrate convection currents I first froze blue water into ice cubes. I next used red food coloring to create red water and then heated this water. When I place these objects in water you can see how the different temperatures of water flow.
The hot water flows upward and the cold blue water flows downward.
Materials for this convection current demonstration
Red and blue food coloring
Ice cube tray
Bottle for the hot water
Fish tank or any large clear container
