Pennies How to Change Color of Pennies Pennies, 1/4 c white vinegar, 1 tsp salt, A clear, shallow bowl (not metal), Paper Towels. Mix salt vinegar in bowl. Stir til salt dissolves. Add pennies. After 5 min, take out half of pennies; Put on paper towel. Remove rest of pennies. Rinse them really well under running water, put on a paper towel. In abt 1 hour rinsed pennies will look shiny and unrinsed pennies will be coated with a blue-green compound called malachite.
A fun game to teach COIN VALUES. Simply roll the dice (once per turn) and take that number of pennies. As often as possible exchange 5 pennies for 1 nickel, 2 nickels for 1 dime, 2 dimes and 1 nickel for 1 qtr., and 4 qtrs. for the $1 bill. The first one to $1 wins the game. Perfect for some Kinders and most 1st graders.