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.

 

Hewitt-Drew-it! 68. Air-Buoyancy Problems

Problem solving with air buoyancy is investigated.

 

Hewitt-Drew-it! 67. Buoyancy of Balloons

Buoyancy of ascending balloons.

 

Hewitt-Drew-it! 63. Buoyancy Problems

Problem solving with buoyancy is investigated.

 

Hewitt-Drew it! 62. More on Buoyancy

How density affects sinking, floating, and remaining in equilibrium doing neither.

 

Hewitt-Drew-it! 61. Buoyancy on a Submarine

How is the buoyancy of a submarine affected when it is submerged?

 

Hewitt-Drew-it! 60. Archimedes

Archimedes' principle has a fascinating application, the famous Falkirk Wheel in Scotland.

 

Hewitt-Drew-it! 59. Buoyancy

Why is buoyancy an upward force? Why not sideways, or in some other direction?

 

Amusing Surface Tension Experiment

How does soap change the surface tension of water?

 

Buoyancy - Why do some things float?

Scientists seem to be infatuated with objects that float and sink. Even non-scientists find great joy in dropping stuff in water to see if it floats or sinks. Fans of David Letterman are quick to point out one of Dave's favorite segments called, "Will It Float?" Here's the latest float or sink challenge: Why do lemons float in water but limes sink? Think you know the answer? Not so fast...

 

MIT 8.01 Classical Mechanics Lecture 28

MIT Physics Course

Professor Walter Lewin

8.01 Physics  I: Classical Mechanics, Fall 1999

Hydrostatics - Archimedes' Principle - Fluid Dynamics - What Makes Your Boat Float? - Bernoulli's Equation

See other videos in this series.

Eureka! Episode 26 - Buoyancy

Showing viewers that objects immersed in a liquid are buoyed up by a force equal to the weight of the liquid displaced, this program explains the principle of buoyancy.

Other Eureka episodes

Buoyancy and Density

What floats?  What sinks? It depends on density. Archimede's Principle

Source:  Hila science videos