The Greeks
St. Saviour's Junior
School
After hearing the story of how Vulcan, the god of fire,
forged Achilles’ armour (referred to in the painting
by the volcano in the background), the pupils made a
large model of a volcano and erupted it using an explosive
formula of vinegar and bicarbonate of soda.
This is the chemical equation for the reaction of bicarbonate
of soda with vinegar:
NaHCO3(s) + CH3COOH(aq) →
CH3COO- Na+(aq)+CO2(g)
© St. Saviour's Junior
School. Photo: The National Gallery, London.
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