If you recall, we reviewed Dad's Book of Awesome Science Experiments wonderful book last week!
I wanted to share with you how Miss Grace's Penny Shiners experiment is going
Yup- that is a penny that has COME APART into 3 pieces!
In about a week, the salt and vinegar solution broke down the one penny and separated the front and back and rim! Miss Grace was VERY impressed! And it was a great learning lesson in how the coins are made!
The other 2 pennies have not separated yet- they are older- 1970/1972, so that might have something to do with it. We decided to leave them for another week to see what will happen! Will keep you posted!