This experiment shows students the importance of hand hygiene and demonstrates how fast bacteria spread by physical contact. The potato that has been touched by all students should start to rot the fastest.
Students understand the importance of personal health and hygiene.
• Paper & pen
• 1 pair rubber gloves (wear while peeling the potatoes so that no germs touch the potato during the peeling process)
• 3 potatoes peeled (also works with bread)
• 3 closable plastic bags
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