1. Fold the kitchen/paper towel a
few times to get a bit of thickness.
2. Lay the kitchen/paper towel on top of the saucer and pour
out some vinegar until it is soaked up by the kitchen/paper
towel.
3. Place the penny on the kitchen/paper towel and leave it
there.
4. Keep a check on the penny and observe the chemical reaction.
5. Leave it for a full day to get the best results.
What happened to the penny? It turned green.
The copper in the penny reacts with the oxygen in the air to form
the green colored copper oxide.
Kids
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