Next we explored the causes of why the Statue of Liberty has turned green. First we discovered that it was originally the color of a penny! We wondered why it was green instead of the brown color of dirty pennies. We decided to try a little experiment to see if we could make pennies turn green!
Exploring Change in Matter
Today we explored how we could change pennies. With a little research we discovered that pennies are made of copper (and so is the Statue of Liberty!). BUT after 1983, pennies were made with copper and zinc. We decided to search for pennies made before 1983 for our experiment. First we sprinkled them with salt and then dropped a few drops of vinegar on them. Within 30 seconds you could see the chemical change happening. The dirty, dull pennies became shiny again!
Our Bulletin Board
Here is our current bulletin board. Our new planner How the World Works is about using scientific investigations to explain the changes in our world. We began our inquiry by exploring matter, the properties of matter and how to change matter.
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