The interactions you saw in this activity between two magnets, and a magnet and a ferromagnetic material, are examples of what we will call a magnetic interaction. The interactions you saw between two charged tapes, and between a charged tape and other materials, are examples of what we will call a static electric interaction. S1: Some elementary school students ask you for advice about a science project they are doing on recycling. They are thinking about how to separate metals from non-metals in the trash passing through a recycling station. One suggests that a large bar magnet could be used to do this, while another thinks they should use an object that has a static electric charge instead. Which, if either, of these ideas would work for their purposes? Explain your reasoning.