Why Does Burning Wood Pop and Crackle?

Answer

Wood has small pockets of air and fluid in it. When it is burned, these pockets increase in pressure and pop and crackle as the pressure is released.
Q&A Related to "Why Does Burning Wood Pop and Crackle?"
A log of wood contains small pockets of fluids such as water and sap. When the wood is placed on a fire and begins to burn, the fire heats the fluids, the same as if they were in
http://www.ehow.com/how-does_4910112_does-burning-...
Vapor trapped inside the wood (mainly water) exerts pressure and causes the
http://www.chacha.com/question/why-does-burning-wo...
When wood burns, it crackles b/c the gas vaporises. If too much gas is in the wood, it will cause a small explosion.
http://wiki.answers.com/Q/Why_does_wood_crackle_wh...
Wood crackles because as it burns or oxidizes rapidly pockets of gas produce a small explosion when they burn. The explosions aren't big enough to do anything but they are also why
http://answers.yahoo.com/question/index?qid=100512...
1 Additional Answer
Ask.com Answer for: why does burning wood pop and crackle
Why Does Burning Wood Pop & Crackle?
A log of wood contains small pockets of fluids such as water and sap. When the wood is placed on a fire and begins to burn, the fire heats the fluids, the same as if they were in a pan on the stove.... More »
Difficulty: Easy
Source: www.ehow.com
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