because it can help you in life what happened you don't have food or oven say you was I the woods and you hase,fire you can bake cookie because you have fire you just put the cookie on the fire and it Will bake
1. Cannot return it to previous state- "unbaked". 2. Change of odor or scent. 3. Formation of gases or air bubbles. 4. Exothermic reaction- gives off heat temporarily.
