Chemical Changes Experiment

Chemical Changes Experiment
Chemical Changes Experiment
Chemical Changes Experiment
Chemical Changes Experiment
Chemical Changes Experiment
Chemical Changes Experiment
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Chemical Changes Experiment with Pennies
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In this Chemical Changes science experiment students will answer: Why is the Statue of Liberty green? What caused it? After learning about chemical changes, students will conduct their own science experiment using pennies and vinegar and see for themselves! Students are always amazed by this chemical change experiment!

You can tie this in with acid rain and the environment and chemical changes in matter. Students will use this Scientific method based sheet to record their results and observations.

Students can record their results after 2 observations, which can be spaced apart according to your own preferences. Typically students can make their first observation 30 minutes after adding vinegar and then make their last observation 2 hours later or the next day.

(My students saw the penny change colors within 15 minutes! I conducted the experiment in the morning before we went to our bathroom break, so when we came back, the students noticed/observed the reaction taking place.)

This is a great experiment to introduce students to chemical reactions!

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Procedure for Penny Chemical Reaction

Fold a paper towel so that it fits inside your dish.
Place the pennies on top of the paper towel. Pour vinegar over the pennies so that the paper towel is fully saturated. Have students observe the changes that occur over an hour, two hours, or even the next day! A penny is made of copper so the vinegar on the paper towel helps the copper in the penny easily react with the oxygen in the air to form a blue-green colored compound called malachite.
Total Pages
2 pages
Answer Key
N/A
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