When Is Pumice Stone Formed?
When Is Pumice Stone Formed? Pumice stone is formed when molten volcanic glass, ejected from beneath the earth’s crust, cools so rapidly that there is no time for it to...
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Who First Traveled the Length of the Amazon?
Who First Traveled the Length of the Amazon? A party of Spanish explorers led by Francisco de Orellana became in 1541 the first Europeans to travel the length of the...
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Is the Moon Moving Farther Away from Earth?
Is the Moon Moving Farther Away from Earth? As the Moon travels around Earth, it affects Earth’s rotation. Scientists have determined that the Moon slowly gets...
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Where Is the Gulf Stream?
Where Is the Gulf Stream? The Gulf Stream is in the Atlantic. It is a warm ocean current which flows steadily from the Gulf of Mexico north-eastwards. One branch...
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How Were the First Mountains and Valleys Formed?
How Were the First Mountains and Valleys Formed? The first mountains and valleys were the crust formed as a result of the cooling of the molten mass of the earth. As...
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What Is a Depression?
What Is a Depression? A depression is an area of low pressure, usually bringing unsettled weather. A deepening depression has a lowering of pressure at its center. The...
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What Is Jai Alai?
What Is Jai Alai? Jai alai is a unique game which got its start over 400 years ago as a handball game in the Basque region of the Pyrenees Mountains of Spain. The name...
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What Is La Galera?
What Is La Galera? La Galera is a tunnel in Peru and has a significant importance in engineering history. Once the highest railway station in the world, Galera now...
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Where Do Tarantulas Live?
Where Do Tarantulas Live? When most people think of a tarantula, they think of the Mexican red-kneed tarantula, known scientifically as Brachypelma smithi. There are...
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Why Do We Have Holly at Christmas?
Why Do We Have Holly at Christmas? The custom of having holly in the house at Christmas probably comes from the old Germanic races of Europe who used to hang evergreen...
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