Make science come in loud and clear. Pupils learn about how a speaker works by building one. The scholars first learn about electromagnetic fields by building an electromagnet. Using that knowledge, they build a crude speaker using a paper cup, wire, and a ceramic magnet.

Concepts

electric circuits, electric fields, electromagnetic force, electromagnetism, sound waves, sound vibrations, magnetic fields, insulators

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Additional Tags

science

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Instructional Ideas

• Bring in an old speaker to disassemble to reveal its components
• Have the class determine methods to find the strength of the homemade electromagnets

Classroom Considerations

• Requires working with electricity, which may be a safety concern

Pros

• Provides a suggestion on where to find ceramic magnets
• Includes links for further extensions

Cons

• None