How Many Eyes Does a Fly Have?
How Many Eyes Does a Fly Have? The head of a fly is almost “all eyes.” Most flies have four eyes—two large compound eyes and two tiny simple ones called “ocelli.” But...
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Why Is the Sky Blue?
The daytime sky is blue because of what happens to sunlight as it enters the Earth’s atmosphere. When the Sun is low near the horizon as it rises or sets, the...
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What Gives My Eyes Their Color?
What Gives My Eyes Their Color? The colored part, or iris, of your eye gets its color from a coloring pigment called melanin. Whether melanin colors your eyes brown,...
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What Causes Rainbows?
What Causes Rainbows? When the sun is out during or right after a shower, a rainbow appears in the sky. When sunlight strikes the drops of water in the air, the...
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Does a Robin Cock Its Head to Listen?
Does a Robin Cock Its Head to Listen? A robin does not cock its head to listen. It does so in order to see well. The robin’s eyes, like the eyes of most other...
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