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Educational Level:
Grade 5  
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Documentary  
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This twelve-minute YouTube video incorporates NASA imagery and visualizations as it traces the history of air quality research.

Keywords: Air pollution
Audience: Elementary school, Middle school
Materials Cost: Free

These short videos introduce learners to the electromagnetic spectrum though eight animations including an introduction to electromagnetic waves and one animation for each wavelength of the EM spectrum (Radio, Microwave, Infrared, Visible,... (View More)

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