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Overview         (For age - group : Below 16 )

The educational science animation introduces candle by explaining what a wick is made up of and types of wax, then it detail at the process of burning of the candle. An inside view of chemistry of candle is also given. This K8 –K12 animated chemistry software gives in-depth information about how candle works and is very useful for teachers and candle making industry.

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Candle & its chemistry
Content : Educational science software
Type :

Duration :
8 minutes

    Topics Covered :
  • What is a candle made up of?
  • How does wax produces flames when burnt?
  • Which are the chemical substances used in preparing a candle?
  • What are wax and stearic acid?
  • Chemical structure of wax and stearic acid

candle wick wax and burning
A look at wick material and types of wax, the process burning of candle at its wick to produce a flame is shown
Paraffin wax and stearic acid
Molecular structure of stearic acid and paraffin wax

Paraffin wax and stearic acid

A look at the molecular structure of stearic acid and paraffin wax
Details of the animation/ movie /software

Candle : We light a candle by touching a flame to the end of the wick. At first the wick itself starts to burn. The flame creeps down the sides of the wick and usually diminishes until it touches the wax. The heat from the flame melts the wax surrounding the base of the wick directly beneath it and then the mechanism starts.

Wick : In all candles it acts as a fuel pump, supplying liquefied wax up to the top, wick is the most important element of the candle.

Chemistry of Candle: Candles are made from mixture of paraffin wax and slow burning substance like stearic acid.

All about it inside the animation.

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Q & A
Q2: why candles are turned off when we run with them ? ahmed salem 18/10/2010
Q3: But, isn't it true that candles DONT ACTUALLY exist?? Sir Graham Todlington (Pigeon Shooter) 28/4/2009
Q4: Why isn't a candle amde out of cheese ? RaaaaWWWWWWRrrrrrrrRR 6/2/2009
Q5: who to purchage you product murali krishna 21/11/2008
Ans: You can pay through credit card, demand draft , PayPal, Money Order for the products
Q6: This is an outstanding cotribution. Kindly accept my heartfelt congratulations! Prof. Dr. Haroon Rashid 30/7/2008
Ans: Thanks
Q7: Normally, when we cut an onion, our eyes water & sting a lot. But if a burning candle is kept nearby, there are no tears at all. Why is this so? lyra 13/6/2008
Ans: Onions release fumes of sulphuric acid gas that interacts with anything moist including the eyes to irritate them, so freezing onions or cutting them in a pan filled with water does away with the emission also having a fire, such as a candle, will help as the heat and flames will draw in the onion gas, burn it, and then send it up with the rest of the flame exhausts. In the heat, the chemical reaction changes it such that it no longer irritates the eyes.
Q9: all info about trick candles (for a chemestry project... ASAP!!) Victoria Mayer 5/3/2008
Ans: What is the trick in the “trick candle”? When a person blows it out, it simply re-lights itself. In a normal candle, there is a burning ember (red portion) in the wick that causes a ribbon of paraffin smoke to rise from the wick. That ember is hot enough to vaporize paraffin but it is not hot enough to ignite the paraffin vapor. It needs something that burns producing a higher temperature. We add magnesium to wick; it burns rapidly at an ignition temperature of 800 deg F (430 deg C), the tiny sparks of magnesium re-ignite paraffin vapor, to light up the candle. The magnesium in the rest of the wick doesn't burn because the liquid paraffin isolates it from oxygen and keeps it cool. This is similar to a dynamite fuse except the quantity of magnesium is much less in candle.
Q10: who invented the lightbulb? geo 9/4/2006
Ans: Invention of light bulb has a history prior to Edison’s “development” of electric bulb in 1879. In 1854 - Henricg Globel, invented the first true light bulb using a carbonized bamboo filament placed inside a glass bulb, the first electric arc light was invented in 1809 by Humphry Davy, he connected two wires to a battery and attached a charcoal strip between them. The charged carbon glowed on passing the current. In 1820 Warren De la Rue put a platinum coil in an evacuated tube and made it glow.
Q11: What is a star? pushpa 7/4/2006
Ans: Stars are massive bodies of plasma (ionic gas - hydrogen whose nucleus has separated from its electron) in space, producing their own energy through nuclear fusion. They are in hydrostatic equilibrium (contained in by gravity) so do not explode. Look at our “nuclear fusion in Sun” animation for more info. Stars allow us to look into the past, light coming from nearest Star “Sun” takes 8 minutes and from Alpha Centauri takes 4.3 years and tells us what they looked like 8 minutes or 4.3 years ago.
Q12: Why can't a candle survive without air? sarah 7/4/2006
Ans: A candle can, its flame can't ;) to burn a candle or for that matter any combustible material oxygen is needed ( for oxidation of carbon), in absence of air a candle cannot produce a flame.

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