Supplies: flour, plastic plates and black cardboard.
Directions: Pour some flour on a plate. Students put their hand in the flour. First they shake hands with their companion and then their companion presses their hand on the black cardboard.
Conclusion: Germs (flour) spread easily.
More information: Germs are so tiny that we need a microscope to see them.
Directions: Pour some flour on a plate. Students put their hand in the flour. First they shake hands with their companion and then their companion presses their hand on the black cardboard.
Conclusion: Germs (flour) spread easily.
More information: Germs are so tiny that we need a microscope to see them.
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