Cool Water to Ice video

In our Matter unit, we have been talking about the changes in states of matter.  We talked about interesting changes such as sublimation, when a solid turns directly to a gas without first turning into water. Dry ice is an example of this change. 

We have also been discussing how fast the change between phases can occur.  We completed a virtual lab and created graphs to represent our data.

I have included a great video link to show just how fast that change can occur (if the temperature is cold enough).  I wouldn't want to be in Great Falls, Montana.  Too cold!!

http://www.usatoday.com/search/man%20turns%20boiling%20water%20to%20dust/