I am well aware that the flour dust will burn as it is dispersed into a
flame.  When I am performing a demonstration like my fire breathing pumpkin,
its exactly what I am counting on.  When explaining it I tell students that,
"a fine powder dispersed in a flame has the potential to burn."  I never
tell them that "flour will burn when thrown through a flame."  If anything,
I talk about the great lengths midwest farmers go to in order to ground
their grain silos in case of lightning strikes.  But I agree with you, and I
don't tell students about the burning potential of flour.

Mike Davis
Science Theatre Productions

-----Original Message-----
Sent: Thursday, October 25, 2001 4:41 AM
Subject: Re: RE: [CPS Science]Re: Halloween Chemistry Demos

I hope you know that flour dust has the potential to be explosive......NOT a
good idea with students!

P. Michals

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