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My fav is Lycopodium powder inside a jack-o-lantern!

 Put a small amount of lycopodium on a dish inside the jack-o-lantern.
Drill a hole in the pumpkin for adding an air hose. Insert the air hose so
that when you blow in the hose it will disperse the lycopodium into the air.
Place a small candle in the jack-o-lantern.  Place the lid back on your
jack-o-lantern and blow into the pumpkin.  The result is a dust explosion
like you get in grain elevators.  Only this time fire comes flying out the
mouth and eyes of your perfectly carved jack-o-lantern.  It is a beautiful
thing!


On 9/10/10 3:56 PM, "Isabel Van Dyke" <[log in to unmask]> wrote:

> ISEN-ASTC-L is a service of the Association of Science-Technology Centers
> Incorporated, a worldwide network of science museums and related institutions.
> *****************************************************************************
> 
> Hello everyone,
> 
> I'm an AmeriCorps member serving as Science Activities Coordinator at
> ScienceWorks Hands-On Museum. We will be having two days of "Spooky Science"
> activities on October 30 and 31, and I'm looking for ideas for a 15-20
> minute demonstration. What are your favorite quick tricks for a
> Halloween-themed demo? Dry ice, glow-in-the-dark, slimy stuff, etc., etc.?
> This would take place in our theater, which has a sound system and projector
> and can withstand the (appropriate) use of fire and liquid nitrogen. All
> ideas are greatly appreciated!
> 
> Thank you,
> Isabel

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