Why Do Cats like Catnip?
Cats are attracted to catnip because of its mint-like smell. Because of this, the plant is sometimes called “cat-mint.” Catnip is a fragrant member of the...
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What Is an Isosceles Triangle?
What Is an Isosceles Triangle? An isosceles triangle has two equal angles (and two equal sides). The angles can vary, as long as two are equal. For example, a triangle...
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Why Do a Cat’s Eyes Shine at Night?
Why Do a Cat’s Eyes Shine at Night? A cat’s eyes shine because they reflect light. Cats have a special mirror-like material in the back of each of their eyes....
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What Are Icebergs?
What Are Icebergs? An iceberg is a mountain of ice floating in the sea. It was once part of a glacier. In many places glaciers flow right down to the sea. At the...
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What Is Tombstoning?
Tombstoning is the act of jumping in a straight vertical posture into the sea or other body of water from a high jumping platform, such as a cliff. This posture of the...
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What Is a Carpenter Bee?
Carpenter bees are solitary bees that build their nests in wood. The female carpenter bee digs a tunnel in a log or other dry wood with her sharp, strong jaws. Then she...
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Why Is There Daylight-saving Time?
Daylight-saving time is the practice of advancing clocks during summer months by one hour so that in the evening daylight is experienced an hour longer, while...
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How Are Ship Models Put into Bottles?
How Are Ship Models Put into Bottles? A ship model in a bottle is first completely constructed outside the bottle. The builder then folds the masts and rigging down,...
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What Is the Liquid in a Thermometer?
What Is the Liquid in a Thermometer? Most thermometers are sealed glass tubes with liquid inside. The liquid is either mercury, which is silvery, or alcohol, which is...
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How Did We Get the Word Salary?
Salary comes from the Latin word “salarium,” meaning “salt money.” In ancient times a part of the wages paid to Roman soldiers was an allowance to buy salt with. This...
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