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Fun Fact of the Day

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Science

Physics and chemistry facts with simple explanations.

Only Two Elements Are Liquid at Room Temperature Science Only Two Elements Are Liquid at Room Temperature Under standard conditions, only mercury and bromine are liquid. Sound Moves Faster Through Water Than Air Science Sound Moves Faster Through Water Than Air Sound travels about four times faster in water than in air. Water Grows When It Freezes Science Water Grows When It Freezes Water expands by about 9 percent as it turns to ice. Lightning Is Hotter Than the Surface of the Sun Science Lightning Is Hotter Than the Surface of the Sun A lightning channel can reach about 30,000 kelvin, roughly five times hotter than the Sun's surface.