I know there is a topic on that in the BACKYARD BALLISTICS already but I was wondering if any of u good chemists would know about a substance that would create "flames" but would not burn, ir be too hot. You would also be able to roll it into a ball

im ont sure its possible coz if u oxidise something (burn it) huge amounts of energy are released. If it had much less energy so therefore wasnt as hot it wouldnt burn as well/at all.

I am not sure if u really burn it or u make it look like it's burning!

Sure you can make "cold" fire. It will be relativly cold, cold when compared to normal fire, but it will still be hot.

Fire is plasma. A plasma is formed when gasses are heated to the point where the electrons are stripped from it. That's hot.

There are about a half dozen types of plasmas that due to a unique nature can not transfer energy to certian elements found in organic matter. Flourine plasma set to a certian energy level will not harm a human, or other living things, but can vaporize paint.