The dark brown color of a penny is most likely oxidation, which occurs when the
copper in the penny comes in contact with oxygen. Since the average penny ...
Dirty pennies; White vinegar; Table salt; Shallow glass or plastic bowl. How to:
Put a couple of ... It's the same reaction that makes the Statue of Liberty green!
Nov 3, 2013 ... A chemical reaction takes place that makes a molecule called copper oxide – that
is the dirty stuff that you see on the penny. This “stuff” is often ...
Put about 5 pennies into the bowl and count to 10 slowly. Take out the ... Do other
amounts of salt make a difference in the chemistry of the experiment? Science ...
If the eraser is too hard, it can leave deep scratches in the penny. Place a dirty
penny on a clean cloth and rub gently in a circular motion with the eraser. Flip the
Dirty pennies have a variety of causes. penny graph image by RT from Fotolia.
com. There are currently over 130 billion pennies circulating in the United States.
A. Pennies are coated with copper oxide when they are made. The copper oxide
makes the pennies look dirty, but they are really not. When the pennies are ...
www.ask.com/youtube?q=What Makes Pennies Dirty?&v=5hQqYLrPuAk
Apr 6, 2011 ... This instructional video is a suitable time-saver that will enable you to get good at
science cool experiments. Watch our short video on How To ...
www.ask.com/youtube?q=What Makes Pennies Dirty?&v=D1Llfm4dtcs
Jul 29, 2009 ... I make pennies go from dark to light!!! ... How to make dirty pennies clean.
Yyyyzyyy ... Multiple Methods to Clean Dirty Coins - Duration: 4:26.
www.ask.com/youtube?q=What Makes Pennies Dirty?&v=H4N-iGvYrbM
Sep 9, 2012 ... In this video we clean pennies with vinegar and salt. Just mix together some
vinegar with enough salt to make a saturated solution. The apply ...