When a pan of water is heated on gas stove all the turns hot in while. how does heat travel through water?

When a pan of water is heated on a gas stove, the heat travels through the water mainly through convection. Convection is the transfer of heat through the movement of a fluid. In this case, the water molecules near the bottom of the pan absorb the heat from the stove and become less dense. This causes them to rise to the top of the pan. As the less dense water molecules rise, they are replaced by cooler, denser water molecules from the bottom of the pan. This creates a circular motion of water within the pan, which is known as a convection current. As the convection currents move through the water, they transfer heat from the bottom of the pan to the top. This process continues until the entire pot of water is heated.