Illuminate lightwaves, even those not visible to the human eye, in a concise activity about the electromagnetic spectrum. Pupils watch and listen to an animated video describing the electromagnetic spectrum as well as frequency and wavelength changes. Investigators apply information by identifying examples of different electromagnetic waves using a matching worksheet.

Concepts

electromagnetic spectrum, light energy, electromagnetic energy, frequency, wavelength

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Instructional Ideas

• Using rope, ask volunteers to model frequency and wavelength changes for class members
• Provide participants with a KWL chart for completion

Classroom Considerations

• Provide viewing accommodations as appropriate
• There is no answer key, so teachers may want to create their own ahead of time

Pros

• Contains clearly explained examples for each type of lightwave

Cons

• Typographical error on the worksheet