4 CHAPTER 1 HOW WILDFIRES FORM A wildfire is a large fire in a natural place For example many wildfires occur in forests The fire's raging flames spread out of control They feed off dry trees bushes and other plants WATCH A VIDEO HERE
Some wildfires have burned areas the size of New York City 5
6 Fires need three things to burn and spread First fires need fuel Fuel is anything that can burn In a forest fuel could be leaves trees and grass Second fires need oxygen Third fires need a source of heat
7 Many wildfires use trees as fuel For this reason wildfires are sometimes called forest fires
