This lesson introduces the basics of electricity and magnetism, beginning with early experiments that led to the discovery of how changing electromagnetic fields can be harnessed. It then demonstrates the relationship between electric currents, magnetic fields, and electrostatic fields. A series of simple hands-on activities follow, ending with a discussion where students consider how the demonstrations could be improved.
Students will:
- Explore electricity and magnetism
- Explore engineering history
- Develop problem-solving skills
- Identify common elements of electrical systems and equipment
- Explain how magnets are made and what they do
- Understand circuits, switches, conductors, resistors, and batteries
- Explain what capacitors are made of and how they function
- Understand the meaning and importance of insulation
- Identify basic electrical safety precautions
- Collaborate in groups to develop teamwork skills
Activity Instructions & Procedures
Lesson Activities
It is suggested that the students assist the teacher in obtaining the simple materials – mostly short lengths of soft iron or steel bar. One similar length of a non-magnetic material such as brass or aluminum would also be useful. A small quantity of iron filings (say a teaspoon full) would also be required. The students will be able to help the teacher to make these filings if necessary.
- A simple experiment, using three LEDs, a capacitor and a 6 Volt lantern battery is also outlined at the end of this lesson.
Curriculum Alignment
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