convection currents!!!

Yo all!
Today we shall focus on convection currents and its applications in this real world in real life :D

Here's a diagram which shows an example of a convection current of liquids.
(Note the direction of the arrows and blah)

Some examples of convection currents of liquids would be like when we boil water. As the next diagram shows, notice the arrows. The explanation would be that when the water is being boiled, the water at the bottom of the pot expands. the expanded water is then less dense than the surrounding water, which explains why it starts to rise. The cooler regions of the water would then sink, being denser. Hence, this movement of the liquid due to a difference in its density sets up this thing called the convection current.

As for the convection currents of air, the explanation is the same, as the air gets heated and becomes less dense than the surrounding air, it starts to rise. Also, the surrounding air which then becomes denser, starts to sink. This movement of air/gases due to a difference in its density sets up the convection current too.

Some applications and examples of the convection currents in air would be like the heater, the experiment of the spiral paper plus candle, which are shown in the diagrams below. Other examples would be like what I mentioned earlier too in my previous post in the video, about convection currents and air-balloons.

One last example that I would give would also be how convection currents are responsible for causing such a thing in nature called the sea and land breeze. (Refer to diagram below.)

More about the land and sea breeze:

During the day, land heats faster than water, so the air over the land becomes warmer and less dense. It rises and is replaced by cooler, denser air flowing in from over the water. This causes an onshore wind, called a sea breeze. Conversely, at night land cools faster than water, as does the corresponding air.

In this case, the warmer air over the water rises and is replaced by the cooler, denser air from the land, creating an offshore wind called a land breeze. This reverses the local wind circulation pattern. Convective currents can occur anywhere there is an uneven heating of the Earth´s surface.

Alrighty then :)

Although there are still SO MANY other examples of convection currents in our daily lives, but I guess I'll have to end here for convection, there's just too much to say :D