How Does a Silkworm Make Its Silk?
How Does a Silkworm Make Its Silk? Silk is a thin, but strong fiber that silkworms produce when they are making their cocoons. The silkworm makes its silk by oozing a...
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Why Do We Sweat?
Sweating plays an important role in the body. It is one of the ways the body is able to cool off when we become too warm. When we exercise, our muscles produce extra...
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Where Does Saliva Come from?
Saliva enters the mouth from three pairs of glands around and under the tongue. The glands that make it are called salivary glands. The salivary glands sit inside each...
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How Are Seashells Formed?
How Are Seashells Formed? The protective shells of clams and other shell-forming mollusks are formed by a special part of the mollusk’s body called the mantle. This...
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Why Does Not Our Stomach Get Digested?
Why Does Not Our Stomach Get Digested? When we eat, the glands lining the walls of the stomach secrete a thin, strongly acidic, almost colorless liquid, called gastric...
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