What Are Goose Pimples?
“Goose pimples” are little bumps that sometimes appear on your skin when you are frightened or cold. Goose pimples are caused by tiny muscles at the hair roots in the...
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What Is a Cold-blooded Animal?
What Is a Cold-blooded Animal? Many animals such as fish, frogs, snakes and lizards are often called “cold-blooded,” as opposed to “warm-blooded” mammals and birds....
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How Do Fish Live in a Frozen Pond?
How Do Fish Live in a Frozen Pond? Anyone who has fished through a hole in the ice knows that many fish are active in the winter. Usually, what we call a frozen pond is...
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Why Do Some Bears Sleep All Winter?
Why Do Some Bears Sleep All Winter? Many bears sleep through the coldest days of winter because they cannot find enough food. As the weather gets colder, a bear needs...
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What Is Fog?
Fog is a cloud that forms near the ground. Fog appears when the cold ground chills a warm breeze. The sudden cooling causes the moisture in the air to condense, or form...
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