Green+Penyy

Green Penny Have you ever got change back from a store and noticed it was green??? If you were wondering why, well just watch this video…. First you will need some materials: > Vinegar > (Possibly) a pair of safety goggles in case of a reaction. > A penny > A graduated cylinder > Don’t worry these are simple house hold items and can be found anywhere. (Hopefully) > Purpose: What will happen to a penny when we put acid on it?
 * A kitchen or paper towel

Procedures: 1. Gather all of your materials 2. Retrieve a graduated cylinder 3. Fill the graduated cylinder to the first stopping point (20 ml) with vinegar. 4. Lay the penny on top of the paper towel (or kitchen towel) 5. This is when the messy part comes in. Pour your 20 ml. of vinegar on your penny. In case you think the vinegar did not spread enough, don’t be afraid to pick up your paper towel and rub that vinegar all over. (Just wash your hands good after!) 6. After all the vinegar is rubbed in, leave it on some sort of counter top, and leave to dry for 24 hours.

So have you checked your penny after 24 hours? Did it turn out greener then you expected, or less green? How do you think that this possibly happened? Well here’s how:

Conclusion: Okay, so how do you think your penny turned green? Well, the penny interacted with the vinegar and made the penny turn green. It had to do with the medal (which is the copper) There could also be many other ways, but that is the number one! For more many exciting projects, check online on our Kids Science Projects or many other books.

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