Why Does Wood Crackle When It Burns?
Have you ever wondered why wood cracks when it burns? It’s a common phenomenon that most of us have experienced firsthand, but the science behind it is actually pretty interesting. When wood is heated, the water inside it starts to vaporize and expand. This causes the wood to expand as well, and since wood is not a very flexible material, it starts to crack. The cracking sound is caused by the sudden release of steam from the wood as it’s breaking apart. Wood is made up of cells that are filled with water. When wood is heated, the water inside the cells turns to steam …