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Nov 1, 2020 · Follow along with this experiment to find out why #pennies become dull over time and what works best to make them #shiny again! Will it be water, dish soap, or vinegar...?
- 3 min
- 1705
- Boundless Brilliance
The oxygen joins with the copper on the penny leaving it with a film, called copper oxide (Cu2O2), that looks dull. Your experiment created a chemical reaction that cleaned the dull film of...
- 2 min
- 12.6K
- MilliporeSigma
Uncover the science behind making pennies shine with a simple experiment perfect for kids. Learn about chemical reactions and cleaning copper using everyday household items like vinegar and dish soap. A fun, educational activity for curious young minds.
Aug 27, 2020 · Pennies lose their shine after a while. This experiment explains what causes the dull colour on coins and how to make your pennies bright again. Learning Objectives. To illustrate what an oxidation reaction is and how metal and oxygen react to form an oxide. To understand the influence of an acid on an oxide layer.
7 Ways to Shine Pennies My experiment testing 7 ways to shine pennies from household products like vinegar, salt, ketchup, hot sauce, lemons, and soda. Detailed Instructions and...
- 5 min
- 4K
- Dinah Wulf
Jun 19, 2016 · Here’s a simple chemistry project for kids to explore – make old pennies shiny and clean again with salt and vinegar! Why do pennies look dull and brown as they age? Well, the copper in pennies reacts with the oxygen in the air to form a new molecule – copper oxide.
Step 1: Put the salt and vinegar in the bowl. Stir until the salt dissolves. Step 2: Dip one penny halfway into the liquid. Hold it there for about 10 seconds, then pull it out. What do you see? Step 3: Dump all the pennies into the liquid. You can watch them change for the first few seconds. After that you won't see anything happen. Step 4:
