1. Wood needs to be given heat energy to reach the temperature required for combustion to begin. What property of the wood would you need to know to
predict how fast the wood would start to burn? explain.
2. How does a forest fire model the energy flow of fuel combustion? explain.
3. Before the fire, the forest consists of large trees. After the fire, there is only ash.
Explain what the law of conservation of matter suggests happened to the rest of
the mass of the trees.