1 Mackinna performed an experiment to investigate static electricity. For her experiment, she rubbed a balloon on her hair, and the balloon gained a negative charge. Mackinna then approached other materials with the balloon and observed which ones moved away from the balloon. The table below shows Mackinna's materials and the type of electrical charge that each material tends to obtain. Based on the information in the table, which list contains only materials that should have moved away from Mackinna's balloon?
