STEM Experiment Goes Green

Third graders at Marion G. Vedder Elementary School have been learning all about the Statue of Liberty as part of their social studies lesson. In part of a cross-curricular activity, students conducted a STEM lesson to learn why the Statue of Liberty turned green. Using pennies, vinegar and baking soda, the students observed their pennies in the solution to see what happened. They made hypotheses first and recorded their findings after four hours, one day and four days to see the changes in color.