Shiny Coins Experiment


Kids will be amazed at the result of the shiny coins experiment.  Before you start this kids science experiment, let the kids find some dirty copper coins laying around the house. Copper coins work best for this activity.



  1. Pour lemon juice in a glass less than 1/2 full.sniy pennies
  2. Place dirty copper coins in juice and let sit overnight.
  3. Predict what will happen.
  4. Take coins out the next morning and dry with a paper towel.
shiny pennies result
Can you tell the difference from yesterday?

The acid from the lemon juice eats away the dirt and cleans the coins.

 You can use Cola instead of lemon juice for this experiment also.

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