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Hi all - 

 

I'm wondering if anyone has ever found an effective method of "un-coloring"
water in order to re-color it a few minutes later. We'd like to demonstrate
the swirls of clouds in a hurricane with a quick demo of water in a bowl
that's stirred and then we add a couple drops of food color - the color
moves out in bands like a hurricane's clouds. What we'd like to avoid is
throwing out each bowl of water so that we can do this more as a cart-based
activity (repeated multiple times in an hour), rather than a one-at-a-time
demo. 

 

We're thinking diluted bleach, but would like to avoid it if possible. 

 

Other thoughts on what we could use to visualize the bands (small particles
that could be filtered, etc.) are appreciated as well.

 

Thanks,

Katie

 

------

Kathryn Stofer

TerraLink Exhibit Manager

Maryland Science Center

601 Light Street

Baltimore, Maryland 21230

p 410.545.5976

f 410.545.5974

http://www.marylandsciencecenter.org <http://www.marylandsciencecenter.org> 

Join us for BODYWORLDS 2, now through September 1!

 


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