What does light tell us about faraway objects? These resources explore the three basic concepts—that most light is invisible to our eyes, that it tells about the chemical composition of its source, and that the glow from an object can reveal its temperature.

		Light: Its Secrets Revealed Article for grades 6 through 12 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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		Detecting UV Light Curriculum Materials for grades 5 through 8 You can't see the Sun's ultraviolet rays with your eyes—you just see their results on your freckled, tanned, or sunburned skin. Build a bracelet that immediately detects these invisible rays.
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		White Light and Colored Light Curriculum Materials for grades Kindergarten through 4 When does mixing every color under the rainbow create pure white rather than a murky brown or black? When light, not paint, is the medium—and you're subtracting, not adding, color.
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		Building a Spectroscope Curriculum Materials for grades 6 through 12 White light is a mixture of all colors of visible light, but it doesn't always include every color of the rainbow. Build a spectroscope, and view the spectral fingerprints of different light sources.
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