How Does a Siphon Work?
How Does a Siphon Work? A siphon is a self-powered pump. Fill a rubber tube with water and pinch the ends to keep the water in. Put one end in a glass of water on a...
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What Is the Jet Stream?
What Is the Jet Stream? Several miles above our heads in the top part of the stratosphere, winds can blow up to 300 miles an hour. These winds are called the “jet...
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Why Do Chinchillas Take Dust Baths?
Why Do Chinchillas Take Dust Baths? Chinchillas take dust baths. Yes, they do not take water or wet baths. Their fur is so dense and will have a problem completely...
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Why Is Blood Red?
Why Is Blood Red? Blood gets its red color from a substance called “hemoglobin.” Hemoglobin has a molecule called a “heme” which has the metal...
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Who Discovered Jet Streams?
Who Discovered Jet Streams? Aeronautics played a role in the discovery and mapping of jet streams. Many credit bomber pilots flying missions during World War II with...
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How Did Oil Get into Oil Wells?
How Did Oil Get into Oil Wells? The oil we get from oil wells today was formed from the remains of plants and animals that lived millions of years ago. At that time,...
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How Does a Sundial Tell Time?
How Does a Sundial Tell Time? Long before we had clocks, people used sundials to tell time. A sundial tells time by measuring the angle of a shadow cast by the sun. A...
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What Causes Volcanoes?
What Causes Volcanoes? Volcanoes form when pressures within the earth force melted rock and gases upward through cracks in the surface. The earth’s crust is made...
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Why Does the Moon Appear Orange Sometimes?
Why Does the Moon Appear Orange Sometimes? Moonlight, before it reaches our eyes, passes through the Earth’s atmosphere. As the light travels through the dusty...
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How Hot Is the Moon?
The sun beats down on the face of the moon without mercy and the heat generated is almost twice that of the hottest day on earth. This scorching goes on without letup...
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