Why does wind put out fire?

Wind has a strong effect on fire behavior due to the fanning effect on the fire. Wind increases the supply of oxygen, which results in the fire burning more rapidly. It also removes the surface fuel moisture, which increases the drying of the fuel. Air pressure will push flames, sparks and firebrands into new fuel.

Can you put a lid on a lit candle?

Extinguishing a candle by putting on a non-flammable lid will work and is safe, but I do not recommend it because it traps the smoke inside once the flame is snuffed out. That smoky smell does mix with the freshly melted wax, which can impact the scent when you decide to light your candle again.

Which candle will extinguish first?

Light the candles. Cover the candles with a jar. The taller candle goes out first. The shorted candle goes out shortly after.

What are the key ingredients of fire?

Oxygen, heat, and fuel are frequently referred to as the “fire triangle.” Add in the fourth element, the chemical reaction, and you actually have a fire “tetrahedron.” The important thing to remember is: take any of these four things away, and you will not have a fire or the fire will be extinguished.

What will happen to the flame as it consumes the oxygen in the jar air?

The ‘consumed oxygen’ misconception When it burns, oxygen (from air) reacts with the wax to form two new gases; carbon dioxide and water vapour.

What is the relationship between the size of the beaker and the burning time?

The candles will burn for the same time because the beakers are the same size. The shortest candle will run out of wax quickest. The shortest candle will generate the most convection because the flame is at the bottom of the beaker. It will therefore burn the longest.

Why do you think the lighted candle in the smaller jar put off first than the larger ones?

The candle that is the shortest will go out first. It is because the CO2 is denser than air so it will settle down at the bottom eventually putting off the fire.

Does a burning candle produce carbon dioxide?

Usually a candle burns to produce carbon dioxide but as the amount of oxygen has been reduced the wax vapour burns to produce carbon.

What are the three things needed for combustion to occur?

Three things are required in proper combination before ignition and combustion can take place—Heat, Oxygen and Fuel.

There must be Fuel to burn.
There must be Air to supply oxygen.
There must be Heat (ignition temperature) to start and continue the combustion process.

How does the sun burn without oxygen?

The sun does not run out of oxygen for the simple fact that it does not use oxygen to burn. The burning of the sun is not chemical combustion. It is nuclear fusion.