My daughter really wanted to do an experiment today. She wanted to put pennies in water and pennies in vinegar to see what would happen. I am assuming she saw it on a TV show. I had taken a sneak peek at this months “National Geographic Little Kids” and this experiment was actually in it with one small change, instead of plain vinegar they used vinegar plus salt.
I let her know about that possibility and she decided to set up 3 containers- water, vinegar, and vinegar plus salt. She tested one penny in each cup for 20 minutes. Then she repeated the test with another 3 pennies. The vinegar and salt pennies were definitely the winners in the “shiny contest”.