What Is a Light-year?
Space is so vast that scientists don’t use miles to measure how far stars are away from us. The number of miles would be too large to work w
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How Deep Is the Deepest Spot in the Ocean?
How Deep Is the Deepest Spot in the Ocean? Off the island of Guam in the Pacific Ocean is a very deep, crescent-shaped trench called the “
Why Is the Pound Abbreviated lb?
Why Is the Pound Abbreviated lb? Our abbreviation “lb.” for “pound” comes from the Latin “libra pondo,” meaning “a pound by We
How Do Scientists Measure the Depth of the Ocean?
How Do Scientists Measure the Depth of the Ocean? Historically, before scientists developed new techniques, the depth of the ocean was actua
Why Is Gold Measured in Carats?
Why Is Gold Measured in Carats? The term carat comes from the name of the bean of the carob tree. In earlier times, carob beans were used to