Before doing this experiment, join our Google Classroom page with this code: o5eadsg
For this experiment, you will need:
Procedure:
Select one person to create a "control" baggie: he or she will put plastic gloves, open the loaf of bread, remove a slice, place the slice in the baggie labeled "Control," seal the baggie and tape it to the white board under the Control heading
Select a second person to create a "washed hands" baggie: he or she will go wash his/her hands, then take a slice of bread from the loaf, place it (gently) between the palms of their hands (without squishing, just enough to have touched the surface of the bread with as much palm as possible), place the touched slice in the baggie labeled "Washed Hands," seal the baggie and tape it to the white board under the Washed Hands heading
Select a third person, who has not washed his or her hands since coming to school, to create an "unwashed hands" baggie: he or she will take a slice of bread from the loaf, place it (gently) between the palms of their hands (as above for Person Two, without squishing, just enough to have touched the surface of the bread with as much palm as possible), place the touched slice in the baggie labeled "Unwashed Hands," seal the baggie and tape it to the white board under the Unwashed Hands heading.
Once you've done that, complete the Bread Baggies assignment in Google Classroom
Watch the video once, then look at this assignment and watch the video a second time; complete it during class today to prepare for discussion on Tuesday.