Why Is It Hot at the Equator?
Why Is It Hot at the Equator? The equator is an imaginary circle around the Earth, dividing the Earth’s surface into the Northern and Sout
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Temperature
What Is Skunk Cabbage?
What Is Skunk Cabbage? It isn’t actually cabbage, but it’s a real stinker. This wild plant grows in moist woodlands and swamps in many p
Why Does Water Put out a Fire?
Why Does Water Put out a Fire? When a fireman squirts water on the burning wall of a building, he is putting the fire out in two ways. The w
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 liqui
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