Why Is the Number 13 Considered Unlucky?
Why Is the Number 13 Considered Unlucky? There are many explanations why the number 13 is considered unlucky. One is that it represents the number of persons present at...
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Why Do Honeybees Die after They Sting?
Why Do Honeybees Die after They Sting? The stinger of a female, or worker, honeybee is covered with tiny barbs. Usually the bee will sting only in self-defense. When it...
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What Is Fool’s Gold?
What Is Fool’s Gold? Many prospectors have found what seemed to be gold, but instead turned out to be a bright yellow mineral called “iron pyrite.” Looking...
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How Does My Voice Go over the Telephone?
How Does My Voice Go over the Telephone? A basic phone consists of a microphone (which you talk into), an apparatus to change your voice into electric signals, a means...
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What Do We Call a Person Whose Job Is to Collect People’s Blood?
What Do We Call a Person Whose Job Is to Collect People’s Blood? Sometimes we need to have blood tests to see what is making us sick or sometimes to make sure we...
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How Are Felt-tip Markers Made and How Do They Work?
How Are Felt-tip Markers Made and How Do They Work? A felt-tip marker is a pen which has its own ink-source, and a tip made of porous, pressed fibers such as felt....
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Where Does Chocolate Come From?
Where Does Chocolate Come From? Chocolate is produced from the beans of the cacao tree, which grows near the equator. The beans are produced in the pods of the tree. In...
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How Did Dog Breeds Get Their Names?
How Did Dog Breeds Get Their Names? The breeds of dogs usually get their names because of some special trait or characteristic. The schnauzer dog that originated in...
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Why Is the Ocean Salty?
Why Is the Ocean Salty? The salt in the ocean comes from the earth’s crust. Since the very beginning of the earth’s history, water on its surface has been...
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How Far Can a Flea Jump?
How Far Can a Flea Jump? The ordinary flea can jump about thirteen inches. That is about 100 times the length of its body. If you jumped that well, you could spring the...
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