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science fair project

  • Posted Jan. 9, 2008 by Justsuz Viewed 1348 times
  • This is a migrated legacy post. Image resolution is low. Info

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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    • #
      2008.01.10 Edited

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