Freeze items and explore gas laws with liquid nitrogen
Liquid nitrogen is extremely cold. Wear gloves and use tongs.
Chemicals and Solutions
Large dewar of Liquid nitrogen
- Wide mouth dewar
- tongs or forceps
- rubber tubing
The following items are available:
- Fresh flowers: they will crumble easily after being dunked in liquid nitrogen. (Nature permitting)
- Balloons filled with air: show the decrease in the volume of gas. A fun demonstration: pull numerous inflated balloons out of a dewar. At room temperature the balloons have a volume that is the same as the dewar.
- Rubber ball or rubber tubing: show how they become brittle.
- Various toys that shatter in fun ways
- Liquid nitrogen Ice cream