Why does the flame of a candle always point upwards?

A candle flame keeps pointing up because it heats the surrounding air, creating streaming currents around itself. Warmer air is thinner and lighter than cooler air, since gas molecules spread out when they gain energy. As the heated air near a flame expands, it also rises, since it’s lighter than the air around it.

Why is my candle burning in a circle?

When extinguishing your candle prematurely, you’ll notice a small circle of wax at a lower elevation closer to the wick. A tunneling effect will most likely occur, which may even get worse each time you use your candle. In most cases, this tunnel will result in the flame extinguishing itself by drowning in wax.

Why does placing an upside down glass over a lit candle cause the flame to go out?

It comes from the air. Putting the jar over the candle keeps oxygen from outside the jar from getting in. So, when that oxygen is used up, the reaction can’t keep going. Running out of oxygen makes the flame go out.

How do candles work?

When you light a candle wick, the wax around the base of the wick melts. Through capillary action, this liquid hot wax is drawn up the wick. The heat of the flame turns the wax into a hot gas (a.k.a. vaporizes it) and starts to break down the wax into molecules of hydrogen and oxygen.

What is the correct explanation of what happens to the water when the candle inside the beaker burns out?

The evaporation of the water to water vapor as the candle burns, and the cooling that occurs when the candle goes out, cause lower air pressure inside the glass than outside. The water is pushed into the glass until equilibrium is reached.) Air cools when the flame goes out.

What type of chemical reaction is a candle burning?

combustion
And when you light a candle you use the candle’s wax as fuel for a chemical reaction called combustion which involves reacting hydrocarbons with oxygen, breaking them down into carbon dioxide and water.