Periodic Table of Videos- Oxygen

1. Liquid oxygen is a blue color. Oxygen has to forms, one we breath and another one called ozone.

2.  Liquid oxygen is very reactive and some chemists get worried when they make it. Generally, liquid oxygen is made by accident.

3. The ozone is much more reactive than oxygen. One more awesome thing I discovered from this video is that because liquid oxygen is so reactive, it can reignite a burnt out match.