14Table Exploration: Make an Electromagnet Each table will be its own station.You will have about 15 minutes to do the exploration.Materials:3 pieces of wire (1 m, 1.5 m, and 2 m)Iron nailBatteryPaper clips
15Make an Electromagnet Step One Observations: Length of the Wire *Copy this chart into your journalsMake an ElectromagnetStep One Observations:Length of the WireNumber of CoilsNumber of Paper Clips Lifted1 meter1.5 meters2 meters
16Make an Electromagnet Steps: 1. Hold the nail over the paper clips. Record what happens in your journal under step one observations.2. Wrap the 1 meter wire (shortest) around the nail as many times as you can leaving about 5 inches free on each end.3. Connect the ends of the wires to the battery and hold the nail over the paper clips.Lift the nail out of the paper clips.Record your observations.6. Repeat steps 2-4 for the 1.5 meters wire (middle length). Record your observations.7. Repeat steps 2-4 for the 2 meters wire (longest). Record your observations.8. Answer the questions in your journal.
17Make an ElectromagnetAnswer the following questions in your journal byrestating the question in your answer:What happened to the nail after you wrapped the wire around it an attached it to the battery?How does the number of coils relate to the electromagnet’s strength? How do you know this?What makes an electromagnet different from a regular magnet?
18Exploration ClosureHow can you make an electromagnet?