Green & shiny pennies
Here's another fun experiment with pennies. You need half a cup of vinegar and a teaspoon of salt. Mix it and put the coins in the solution. The dull ones [...]
Surface tension experiments
A great way of teaching kids about water surface tension with just a bunch of coins (plastic or real), water and a dropler. I did this with my 5 year [...]
Bottle caps bugs
I always like to use packaging for playing so I have a lot of caps saved in a drawer for crafts We have used some of them to make little [...]