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Science Experiment:
Pennies of a Different Color
This science experiment makes ordinary copper pennies (USA, other countries may have to use other coins or copper wire with this activity) turn green overnight. The vinegar and copper combine to form copper acetate.
Supplies:
paper towel
¼ cup white vinegar
5 pennies
bowl
Directions:
1. Soak the paper towel in the vinegar.
2. Place the paper towel in the bottom of the bowl.
3. Place the five pennies on the soaked paper towel.
4. Fold the paper towel over the pennies so that the pennies are covered and the paper towel is touching the pennies on both sides.
5. Wait 24 hours, or at least over night.
6. Uncover the pennies and they should now be green.
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Multimedia Activities
