Propane Bubbles continues to be one of our most popular demonstrations among audiences and presenters alike. Propane-filled soap bubbles are generated, released into the air, and then ignited.
The “Burning Steel Wool” demonstration is an engaging means to illustrate that increasing the amount of available oxygen increases the rate of combustion. A 9-volt battery is used to ignite a small piece of steel wool, first in air, and then in an oxygen-enriched environment.
The “Whoosh Bottle” demonstration has proven to be very popular with audiences of all ages. A small amount of alcohol is placed in a plastic bottle, which is then capped and shaken to allow the alcohol to evaporate and mix with the air.