How Does a Cat Purr?
How Does a Cat Purr? Unlike most other animals, cats have two sets of vocal cords in their throats, one above the other. Each set produces different sounds. Many cat...
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How Did Katydids Get Their Name?
Katydids get their name from how their song sounds: “Katy did, Katy didn’t.” Mostly katydids call only at night producing the repetitive songs that are not...
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How Does the Sound Come from a Record?
How Does the Sound Come from a Record? The vibrations of sound made by a person’s voice or a musical instrument are recorded in the wavy groove on a phonograph...
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How Do We Hear Sounds?
How Do We Hear Sounds? When sounds are made, they set up movements in the air. These movements are called sound waves. The cup-like shape of the outer ear collects the...
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How Does a Cricket Make Its Chirping Sound?
How Does a Cricket Make Its Chirping Sound? Crickets make their chirping sounds by rubbing their wings together. Only male crickets make this sound. They attract female...
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