Make Copper Coins Green Parshat vayiGash

You will need:

Copper coins

White vinegar

Bowl

Paper towel

What’s Going On:

A chemical reaction has occurred! (A chemical reaction is the combination of two reactants to form something entirely new.) A penny is made of copper. The vinegar on the paper towel helps the copper in the penny easily react with the oxygen in the air to form a blue-green colored compound called malachite.

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