erie, Pennsylvania - May 29, 2014: Seventh grade students from across the City of Erie are testing their knowledge of chemistry today. Hundreds of middle school students are fighting for the top spot at the 7th annual Chemistry Day at Collegiate Academy. Student teams will participate in chemistry demonstrations and a series of lab competitions. The kids experimented with everything from methane gas to frozen Cheetos. The event is hosted each year by the Erie School District's Science Department to get the students interested in careers in the field. The winning team will receive a trophy to take back to their home school for the year.