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education.com asks:
Q:

Where can I buy pH strips?

Asked by Paulina in commenting on the science fair project:

http://www.education.com/science-fair/article/t...

In Topics: Science fair
> 60 days ago

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Expert

greenprof2
Jan 7, 2011
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What the Expert Says:

American Science and Surplus in Chicago is a place that offers a lot of science and technology stuff cheap. Check it out.
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