How to see how dirty your hands really are
Jun 11, 2020
2 minutes
1 Gather your equipment
ou will need the following items: bread slices, water, sealable plastic bags, a spray bottle, and dirty hands. The number of slices of bread you will need depends on how many objects you wish to test. For this example you will need three. A fresh loaf will work quicker as sliced bread from a shop often contains
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