How Does a Thermometer Work?
How Does a Thermometer Work? Most thermometers are sealed glass tubes with liquid inside. A thermometer measures heat by the amount of liquid that expands when it...
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Why Does Salt Melt Ice?
Why Does Salt Melt Ice? Salt enables ice to melt because it lowers the temperature at which water freezes. How does this melt ice? When you sprinkle salt on an icy...
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How Are Seashells Formed?
How Are Seashells Formed? The protective shells of clams and other shell-forming mollusks are formed by a special part of the mollusk’s body called the mantle. This...
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How Does an Electric Refrigerator Work?
Keep reading to find out how does an electric refrigerator work. An electric refrigerator uses a cooling agent called “freon” to produce cold. The freon...
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How Did the Element Mercury Get Its Name?
How Did the Element Mercury Get Its Name? The element, “mercury,” was named after Mercury, the swift messenger of the gods in Roman mythology. Anyone who...
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