Why Do We Have Hair?
The main purpose of hair is to protect the body. Hair keeps the top of the head warm in winter, and shields it from bumps and bruises. The hair in our nose and ears...
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Why Does Poison Ivy Cause Itchiness?
Why Does Poison Ivy Cause Itchiness? The itchy rash which results from touching poison ivy is caused by oil that is found in all parts of the plant. It’s called...
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What Makes a Skunk Smell?
What Makes a Skunk Smell? The unpleasant odor of a skunk comes from an oily liquid. The skunk uses this liquid as a defense against enemies. The skunk oil, known as...
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Why Is There Sand in Our Eyes When We Wake Up?
Why Is There Sand in Our Eyes When We Wake Up? The “sand” that we sometimes find in the corners of our eyes when we wake up in the morning comes from a...
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What Is Paint Made of?
Paint is made of pigments, solvents, resins, and various other additives. The pigments give it color; solvents make it easier to apply; resins help it dry; and...
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