2013 California State Science Fair Participants
Duncan A. Welch
- Project J2126
- Duncan A. Welch, Grade 6
![portrait](images/anon_ss.gif)
Which Air Filter Removes the Most Particles from the Air?
Advisor: Mrs. Monica Barker
School: Copperopolis Elementary School, Copperopolis, Calaveras County
![CSSF_bar](/CSSF/graphics/CSSF_Bar.jpg)
California State Science Fair
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2013
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Portraits
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CalifSF@usc.edu