When liquid oxygen is poured between the poles of a magnet,
some of the liquid is held in the gap until the liquid evaporates.
The characteristic blue colour of liquid oxygen may also be displayed,
as well as the effect of a high concentration of oxygen on the rate
Effect of a Magnet on the Flow of Liquid Oxygen
Liquid nitrogen is made to flow past a strong magnet. There is no
effect on the flow by the magnet.
Liquid oxygen is made to flow past a strong magnet. Liquid oxygen
is attracted to the magnet and can be clearly seen to flow towards
Comparing the Colour of Liquid Nitrogen and Liquid Oxygen
Beakers of liquid nitrogen and liquid oxygen are observed. Liquid
nitrogen is colourless while liquid oxygen is blue in colour.
Effect of Liquid Oxygen on Combustion Rates
Combustibles are dipped into liquid oxygen, then a burning splint
is used to light them. The same combustibles can be burned in air
to compare the combustion rates. Materials burned were: cotton wool,
iron wool and crisps.