#cleaningpennies

[preschoolfun4everyone-blog]

Science for Kids: Make Old Pennies Shiny Again! - Frugal Fun For Boys and Girls

Here’s a simple chemistry project for kids to explore – make old pennies shiny and clean again with salt and vinegar! Why do pennies look dull and brown as they age? Well, the copper in pennies reacts with the oxygen in the air to form a new molecule – copper oxide. This is the tarnish …

Here’s a simple science project with big results!