Here is a video showing the relationship between kinetics and mechanism of a reaction

A short video illustrating simple cubic, body centered cubic, and face centered cubic structures and unit cells.

Hybridization of Atomic Orbits: Demonstration of sp³, sp², and sp hybridization with examples of bonding for each by Rachael Gray.

Here is a video podcast of the basic VSEPR 3D shapes by Adele Rockett.

Here is a short video illustrating the use of Excel's Solver tool to find coefficients in non-liner equations.

Here is a rough but timely video to help you get started calculating the shape of a titration curve in Excel.

Here is a short video with discussion and demonstrations of the behavior of gases.  It is a largish file (68 MB).  As always, any feedback is greatly appreciated.

Timeline
0:00     Kinetic Molecular Theory
0:50     Pressure and Volume
2:07     Pressure and Temperature
2:58     Pressure and Amount
3:54     Ideal Gas Law
4:45     Mentos geysers
5:27     Soda bottle explosion
5:55     Blooper