Experimenting with Danger- CSB safety Video
This 2011 video by the Chemical Safety Board is a very serious and moving motivation for adopting safe practices in the chemical laboratory. It focuses on two recent and very real safety issues in University labs (UCLA, 2008 and TTU, 2010 ), both of which have shaken the educational research community to result in positive change.
I have shared a "SafeShare" link so that you will not have to listen to ads, and if you choose to play the link in your classroom, you will not see all the Youtube ads on the screen.