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Primary elementary  
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Nighttime light patterns on Earth have been recorded using NASA satellites. In this investigation, students will correlate those patterns of lights with the distribution of human populations, and then determine if related statements included in the... (View More)

This is a set of materials about spectroscopy, including a downloadable PowerPoint presentation and two demonstrations or activities. Learners will read and/or hear about the science of spectroscopy, what a spectrum is, and how spectroscopy is... (View More)

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