You may have noticed that when water boils you can see the bubbles that rise to the surface of the water.. what is inside these bubbles?

The evaporation point of water at atmospheric condition is 100°C. Evaporation is a process by which the liquid phase water is transformed into gaseous phase. This means that at this point, the water starts to form bubbles. 

The formed bubbles are water vapor (gaseous phase). Because it has lesser density than liquid water, it rises to the topmost part of the layer. 

What even is this. where is the question