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 My Fingers Wrinkle after a Bath?
Why Do My Fingers Wrinkle after a Bath? The answer has to do with your skin. Even though you can’t see it, your skin is covered with its own special oil called...
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How Can You Tell How Old a Tree Is?
How Can You Tell How Old a Tree Is? There are two ways to find out how old a tree is. The first is to wait until the tree is cut down and count the rings. The study of...
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What Is Chalk?
Chalk is a soft, white limestone. The chemical composition is calcium carbonate with minor amounts of silt and clay. It was formed from the shells that belonged mostly...
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What Makes My Teeth Hard?
Although it looks like you can see a lot of your teeth, all you really see is the hard exterior known as the crown. The crown is covered with enamel which is like body...
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