December 6


Fifth grade performed an experiment to test whether washing hands before touching bread impacted mold growth.  To mix things up, one class used white bread and the other used wheat bread from Harvest Bread Company.  Although students had a variety of results, we made some general conclusions:

  • Mold grew much more quickly on the white bread and there was a greater variety of mold on the white bread.
  • Mold grew more quickly and there was a greater variety of mold on the bread we touched with our dirty hands.
  • For most students, mold eventually grew on both the slices of bread we touched with dirty or clean hands.
  • Our control bread is just starting to show signs of mold.

Everyone agreed, we need to wash our hands.  There were lots of follow-up questions.


Posted December 6, 2014 by pbright2 in category Science

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