Wednesday, February 16, 2011

Shiny Pennies

Since yesterday's post {The Corner Store} was all about money, and Abraham Lincoln's birthday was 4 days ago, I thought that we could shine up some pennies and talk a little science!

First, gather up some old (not shiny) pennies.

Next mix up 1/4 cup of white vinegar and 1 teaspoon salt in a non-metal bowl.
Drop your pennies into the 'penny cleaner'.

Count to 10 slowly.
Remove your pennies and rinse them in water.

So sparkly!

The kids were really impressed with their new shiny pennies and put them straight into their piggy banks.
I basically told the kids that the vinegar is an acid and reacted with the salt to clean off the pennies - can't get much more detailed than that with preschoolers. 

Wow Abe!  You really clean up well!

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