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science fair project

  • Posted Jan. 9, 2008 by Justsuz Viewed 1338 times

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Slice an apple and put two in a baggie without touching them.

After wrestling practice, he rubs his dirty hands over two more slices and puts them in another baggie.

He then uses hand sanitizer that is supposed to kill 99.9% of germs and rubs two more slices.

The set-up.

Five days later.

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    • # Pete

      well done nice and easy. we do it with the students and Agar plates

      2008.01.10 Edited Reply Cancel