How Does the Ear Give Us Balance?
How Does the Ear Give Us Balance? Deep inside the ear there are three small horseshoe-shaped tubes that have nothing to do with hearing. These tubes are called the...
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What Is a Sea Cucumber?
What Is a Sea Cucumber? The sea cucumber looks as if it comes from a garden, instead of the ocean floor as it is a sea animal with a sausage shaped body that resembles...
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Why Is Blood Red?
Why Is Blood Red? Blood gets its red color from a substance called “hemoglobin.” Hemoglobin has a molecule called a “heme” which has the metal...
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What Causes Goose Pimples?
What Causes Goose Pimples? Sometimes when we are cold or frightened, little bumps, called goose pimples, form on our skin. We may also get a prickly feeling that makes...
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What Causes the Common Cold?
What Causes the Common Cold? Common colds are caused by tiny organisms called viruses, which infect the mucous membranes of the nose and throat. These viruses are...
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