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In this lesson you will learn about direct current and alternating current. Your objectives, skills and materials needed, as well as key words for this lesson are all listed on this page.

Objectives

Students will:

  1. Differentiate between direct and alternating current.

Skills Needed

Students must be able to:

  1. A knowledge of the basics of electricity.
  2. Studied the properties of batteries and electric circuits.
  3. Understand magnetism and electricity.

Materials Needed

Students will need:

  1. metal plate or pan
  2. paperclips
  3. alligator clips (optional)
  4. piece of cloth
  5. cornstarch
  6. potassium iodide
  7. 9V battery
  8. 3 insulated wires with the insulation stripped off the ends
  9. low voltage bell transformer