✔ 最佳答案
火 is gas. The color you see from a fire is the energy released by the 火. Heat is also released. I am not sure whether it is gas or ionized gas(plasma, 4th state of matter). I think it should only be some heated gases.
2008-08-02 18:50:36 補充:
樓上那個根本不知道什麼是物理. 樓下那個只是從wikipedia抄下來.
2008-08-02 18:53:32 補充:
"火只是一物質燃燒時產生的光" Then, what is 物質燃燒時產生的光? That is 火? Then, what is 燃燒以後的物質??
2008-08-02 18:57:13 補充:
物質燃燒時產生light and heat, 即是火(燃燒中的物質)同時間產生light and heat.