Answer: putting out the fire.
Explanation: The law of conservation of energy which popularly states that, in a closed system, energy can neither be created nor destroyed but can only be converted from one form to another, in the scenario above, while trying to put out the fire with water, the energy supplied by the burning wood in the form of heat is quenched with water, pouring water on the wood does not destroy the heat energy being produced, however, applying water converts the energy of the wood to another form, which is evident in the release of steam after the fire had been put out.