General Science Videos:

Bozeman Science
Crash Course Science

Some recommended science YouTube Channels: (I've been especially impressed by the Crash Course channel.)
15 YouTube Channels for Teaching and Learning Science

Safety Videos:


Mr. Bean in the Chemistry Lab: I am thinking students describe and explain all the rules Mr. Bean is breaking in this video.


Sheldon Cooper (Big Bang Theory) and the Muppets give some more good examples of what not to do in the science lab:


Safety in the Chemistry Lab: This video highlights many of our rules nicely, but because it is set in a university chemistry lab it will need teacher interjections/corrections at certain places (e.g. teachers will tell students how to dispose of chemicals, students should NEVER work in the lab without a teacher, students should always tell the teacher about accidents, etc.).