Kids Inquiry Conference

I am doing an investigation for Kids Inquiry Conference that is investigating dimes I put two dimes in two liquids, and I kept the liquids in little glasses One of the liquids is clear household ammonia, the other liquid is regular vinegar I picked these two liquids because vinegar was an acid so I thought the vinegar might burn a hole in it The reason why I picked ammonia was because I thought it might clean off the dime

There where two concluding events that made these dimes change texture The dime in the household ammonia had become rough by having indentation's similar to lines The dime in the regular vinegar still had lines, but not indented in as the one m the clear household ammonia The liquids also changed by being m different shades of blue The one in the ammonia turned to a nch dark shade of blue The dime in the regular vinegar

turned to a very faint blue, like the color of the sky on a bright 80° day This also had clumps that evaporated most of the liquid

I do not know why the dime m the vinegar turned such a light blue The dime in the ammonia turned dark blue because the ammonia dissolved the metallic copper in the dime Since many copper salts are blue, the ammonia dissolved the metallic copper into the solution, which turned the solution blue I enjoyed doing this experiment for a project