IV Observation experiment: interactions of a charged object with an uncharged object The goal of this experiment is to investigate whether and how charged objects interact with neutral objects. Available equipment: Plastic rods, metal rod, a swivel, rubbing materials, foam board, aluminum foil, paper. Part 1: Rub one end of a plastic rod (rod 2) with felt or fur and bring it close to the rod (rod 1) on a swivel that has not been rubbed. Repeat, but this time rub another rod with a different material (rod 3) and bring it near the end of unrubbed rod 1 which is placed on the swivel. a) Record in words and by drawing a picture what you observed. b) Devise an explanation involving a possible internal structure of the material of the rods that might explain why the rubbed rod attracts the unrubbed rod. Part 2: Rub one end of a plastic rod 2 with felt or fur and bring it close to the end of a metal rod 1 on a swivel (metal rod has not been rubbed). Repeat, but this time rub another rod with a different material and bring it near the end of the metal rod 1 on the swivel. c) Record what you observed in words and by drawing a picture. d) Devise an explanation involving a possible internal structure of the metal rod that might explain why the rubbed rods attract it. Part 3: Tear off small pieces of paper, place them on a foam board and bring a plastic rod rubbed with felt or fur close to the pieces. Record your observations. Repeat the experiment but this time use small pieces of aluminum foil instead of paper. Record your observations. Compare and contrast the outcomes of a) and b). Explain the outcomes and the differences in the outcomes if there were any. List everyday experiences that are consistent with these observations. Use the explanations you constructed in parts 1b and 2b of this experiment to explain the outcomes of the Testing Experiment I. Remember that the material from which a magnet is made is iron