This document discusses the difference between conductors and insulators through a lab experiment testing various objects. It hypothesizes that metals will conduct electricity while nonmetals will insulate it. The lab finds that copper, graphite, and nails conduct electricity as seen by lighting a bulb, while cardboard and wire do not conduct. Conductors allow negative charges to move through easily, making metals good for electrical devices. Insulators slow the flow of electricity and help contain it.