Why does ice float in water? - George Zaidan and Charles Morton
View full lesson: http://ed.ted.com/lessons/why-does-ice-float-in-water-george-zaidan-and-charles-morton Water is a special substance for several reasons, and you may have noticed an important...
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Water is the liquid of life. We drink it, we bathe in it, we farm, cook, and clean with it. It's the most abundant molecule in our bodies. In fact, every life form we know of would die without it. But most importantly, without water, we wouldn't have iced tea. Mmmm, iced tea. Why do these ice cubes float? If these were cubes of solid argon in a cup of liquid argon, they would sink. And the same goes for most other substances. But solid water, a.k.a. ice, is somehow less dense than liquid water. How's that possible? You already know that every water molecule is made up of two hydrogen atoms bonded to one oxygen atom. Let's look at a few of the molecules in a drop of water, and let's say the temperature is 25 degrees Cel...
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Water is the liquid of life. We drink it, we bathe in it, we farm, cook, and clean with it. It's the most abundant molecule in our bodies. In fact, every life form we know of would die without it. But most importantly, without water, we wouldn't have iced tea. Mmmm, iced tea. Why do these ice cubes float? If these were cubes of solid argon in a cup of liquid argon, they would sink. And the same goes for most other substances. But solid water, a.k.a. ice, is somehow less dense than liquid water. How's that possible? You already know that every water molecule is made up of two hydrogen atoms bonded to one oxygen atom. Let's look at a few of the molecules in a drop of water, and let's say the temperature is 25 degrees Cel...
