Why does the flame of fire go upwards?

Why does the flame of fire go upwards?

 It is a common experience that the flame emanating from a burning candle, match stick, or wood always goes upwards. The flame of fire never goes down. Do you know why this happens?

To understand why the flame goes up, it is necessary to know what is a flame?

All burning substances like wood, candle or matchstick, etc. mainly contain carbon and hydrogen, when these substances burn, many gases are produced from the burning part. These gases produce heat and light through chemical reactions. These burning gases are visible to us in the form of flame. These gases produced by the process of burning are lighter than air. Due to their lightness, these gases keep rising in the air. By rising above them, we also see the flame always going upwards.

When we blow lightly toward a flame, it starts moving. The air coming out of the mouth disperses the hot gases of the flame. As soon as we stop blowing, the flame becomes straight again. In the absence of air, the flame never moves, but always remains straight.

There are usually two types of flame: First Luminous and second non-luminous flame coming out of the burning candle, wood, kerosene, etc. is bright. The flame emanating from the burning of hydrogen has a very light blue color. Therefore it is kept in the category of non-luminous flame.