* For this experiment you
will need 2 infusion bottles (100 mL),
one with 30 mL of
fresh Cola, the other with 30 mL stale Cola, matches.
* Close the two vials, shake
them and leave them for one minute with the stoppers slightly loosened.
* Left: Dip a burning
match into the bottle with the stale Cola.
* Right: Dip a burning match
into the bottle with the fresh Cola.
Observation:
The match keeps burning above the stale Cola, the fire is extinguished
by the gas released by Cola.
Explanation:
Fizzy
drinks release carbon dioxide (CO2), a fire extinguishing
gas which is heavier than air.