Although wildfire can be quite destructive, some plants and animals become adapted to and even require this disturbance for their survival. This companion Web site to the new PBS NOVA program, Fire Wars, focuses on wildfires, the people who fight them, and the impact that the fires have on natural ecosystems. A teacher's guide accompanies the site, offering ideas for discussion and activities that can be used alone or with the television program. One particularly interesting section is entitled On Fire. This sequence of interactive features walks the user through the chemical reactions involved in combustion.
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