Physical Science

How To Convert Units - Unit Conversion Made Easy--A SCHWANBECK.ORG ORIGINAL--If you have forgotten the basics of how to convert units, you need to watch this video

A white-hot ball of nickel is dropped onto a block of ice. Phase change has never been this entertaining!

Adam Savage of Mythbusters inhales helium and sulfur hexaflouride, demonstrating sound waves' changes in frequency resulting from changes in medium.

Floating a tin foil boat in "mid air"--it's actually floating on top of sulfur hexafluoride, a gas much denser than air.