About This Lesson
What do rainbows, microwaves, radio waves and X-rays have in common?
All of them are electromagnetic waves. They differ only in their frequency and consequently, their wave length.
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The 'other' link is to a site with information about the electromagnetic spectrum. You can role the cursor over the spectrum for information and examples for the differences in wavelength. The handout is a simple word search. This would be appropriate for younger middle school.