Why Do You Sneeze?
Usually you sneeze to get rid of an irritation in the air passage of your nose. Various things can cause a sneeze. You may have dust up your nose, or you may have...
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How Can a Fly Walk on the Ceiling?
How Can a Fly Walk on the Ceiling? A fly can walk across ceilings because it has sticky feet. Each of the fly’s six feet are equipped with tiny claws and hairy...
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Why Do Clouds Change Shapes?
Why Do Clouds Change Shapes? Clouds change their shapes because parts of clouds evaporate when they come into contact with warmer air. A cloud is a mass of condensed...
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Why Does a Cactus Have Spines?
Why Does a Cactus Have Spines? First, let’s look at the spines of cactus for what they really are – the main part of cactus often functions as a modified...
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How Did the Eskimos Get Their Name?
How Did the Eskimos Get Their Name? The word Eskimo means “eater of raw meat.” Northern Indians originally gave them this name because Eskimos eat some of...
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How Does Cut Skin and Scrapes Heal?
How Does Cut Skin and Scrapes Heal? When you cut yourself, blood flows out of the wound from tiny blood vessels in your skin. Lucky for you, the bleeding soon stops....
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Why Do Cats Have Whiskers?
Why Do Cats Have Whiskers? The whiskers on a cat’s face are actually touch receptors and serve as feelers. Scientists call whiskers vibrissae (vi-BRIS-see). These...
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Why Is Gold Measured in Carats?
Why Is Gold Measured in Carats? The term carat comes from the name of the bean of the carob tree. In earlier times, carob beans were used to measure the weight of gold...
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Why Does Hair Turn Gray When People Are Old?
Why Does Hair Turn Gray When People Are Old? Different hair colors, from blond to black, are determined by the melanin, or coloring matter, in your hair cells. This...
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Do Cats Always Land on Their Feet?
Do Cats Always Land on Their Feet? No. Contrary to this popular belief, cats do sometimes fail to land safely on all four feet. But usually, a cat manages to twist...
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