Light: Its Secrets Revealed
Did you know that when you look at a star, your eyes are capturing light that traveled all the way from the star to your eye? Learn more about how light carries information from distant objects.
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This Moveable Museum article, available as a nine-page printable PDF file, offers a kid-friendly look at how information about distant objects comes to us in the form of light. It discusses the following three concepts in depth, and provides a reading list for further research:
- most light is invisible to our eyes
- light is a streaming "code" that tells about the chemical composition of its source
- light from a glowing object can reveal its temperature
Less than 1 period
Supplement a study of astronomy with an activity drawn from this article.
- Ask the class what they know about light. What information does it give scientists?
- Send students to this online article, or print copies of the essay for them to read.
- Have them briefly explain each of the three concepts in their own words.