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science fair project
2008.01.09
Slice an apple and put two in a baggie without touching them.
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After wrestling practice, he rubs his dirty hands over two more slices and puts them in another baggie.
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He then uses hand sanitizer that is supposed to kill 99.9% of germs and rubs two more slices.
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The set-up.
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Five days later.
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1
Comment
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well done nice and easy. we do it with the students and Agar plates
slowpete · 2008-01-10: 00:55
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