Radio waves are all around us! How do they transmit sound? Using an interactive, scholars examine how songs travel through the air. The resource explains the process from the radio station, to signal towers, to the radio unit. A look at AM, FM, and digital signals rounds out an informative lesson.

Concepts

radio waves, the radio, frequency, sound energy, sound waves, electrical energy, transmission

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Additional Tags

science

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Instructional Ideas

• Use the interactive to highlight radio waves and how they are broadcast and converted
• Learn more about digital radio
  

Classroom Considerations

• Make sure the class understands that digital radio is now widely available (it was not at the time the resource was written)
  

Pros

• Allows users to rewind the interactive for another look
• Diagrams convey the content and keep things colorful
  

Cons

• None

Common Core

RST.6-8.2 RST.9-10.2 RST.11-12.2