What Were the First Mirrors?
What Were the First Mirrors? Probably the first mirror was the surface of a quiet pond. Our earliest ancestors must have noticed that they could see themselves in still...
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What Is Saint Elmo’s Fire?
Saint Elmo’s fire is the name given to the glow of light that is sometimes seen on ship masts, airplane wings and church steeples during a thunderstorm. It is...
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Why Are Moths Attracted to a Light?
Why Are Moths Attracted to a Light? Scientists tell us that moths are not really attracted to the light itself. When moths fly at night, they use the moon as a beacon...
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Why Do Leaves Turn Colors in the Fall?
Why Do Leaves Turn Colors in the Fall? The green we see in leaves all summer comes from the green pigment “chlorophyll,” which leaves use in making food. Other colors...
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What Are the Northern Lights?
What Are the Northern Lights? People in northern countries sometimes see colorful displays of flickering, glowing light in the night sky. This colored glow is the...
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