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-   -   Toothbrush (heads, mostly) (http://classroom.all-science-fair-projects.com/forum/showthread.php?t=3518)

gracenicole317 02-01-2009 06:22 PM

Toothbrush (heads, mostly)
 
Which cleans better, soft, or hard?:):lightbulb:


:lightbulb::):confused:

RaZoR 02-02-2009 11:51 AM

I don't know.

Hmm... Maybe you should do a project on this! :confused:


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