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 actually measured by sending a...
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What Is Margarine Made From?
Margarine is a manufactured mixture of vegetable fats and oils. Margarine was created in the early 1800’s as an inexpensive substitute for butter. Most people...
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What Is Fog?
Fog is a cloud that forms near the ground. Fog appears when the cold ground chills a warm breeze. The sudden cooling causes the moisture in the air to condense, or form...
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Why Do Lemmings Go on a Death March to the Sea?
Why Do Lemmings Go on a Death March to the Sea? According to legend, every three or four years, the lemmings of Norway march to the sea and drown themselves. These...
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Why Do Drops of Moisture Form on a Cold Glass?
Why Do Drops of Moisture Form on a Cold Glass? The beads of moisture that form on a glass of ice-cold water on a warm day have nothing to do with the liquid inside the...
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