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 one right in your cold drink: ice. Solid ice floats in liquid water, which isn't true for most substances. But why? George Zaidan and Charles Morton explain the science behind how how hydrogen bonds keep the ice in your glass (and the polar ice caps) afloat. Lesson by George Zaidan and Charles Morton, animation by Powerhouse Animation Studios Inc. Urbanization and the future of cities - Vance Kite. The uncertain location of electrons - George Zaidan and Charles Morton. How to build a fictional world - Kate Messner. Human sperm vs. the sperm whale - Aatish Bhatia. Why do we cry? The three types of tears - Alex Gendler. How do cancer cells behave differently from healthy ones? - George Zaidan. How polarity makes water behave strangely - Christina Kleinberg. 8 traits of successful people - Richard St. John. Should you trust your first impression? - Peter Mende-Siedlecki. Is time travel possible? - Colin Stuart. What is déjà vu? What is déjà vu? - Michael Molina. The chemistry of cookies - Stephanie Warren. How we conquered the deadly smallpox virus - Simona Zompi. The death of the universe - Renée Hlozek. What makes a hero? - Matthew Winkler.

by TED-Ed

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