Objectives
Students will:
- Differentiate between direct and alternating current.
Skills Needed
Students must be able to:
- A knowledge of the basics of electricity.
- Studied the properties of batteries and electric circuits.
- Understand magnetism and electricity.
Materials Needed
Students will need:
- metal plate or pan
- paperclips
- alligator clips (optional)
- piece of cloth
- cornstarch
- potassium iodide
- 9V battery
- 3 insulated wires with the insulation stripped off the ends
- low voltage bell transformer