To make this experience it is enough that if it provides: 1 deep Plate of metallic preference; 3 candles; 1 box of matches; 1 great glass; 1 jar with water. With all the ingredients for the reaction chemistry then proceeds from trivial form. Ascende the match and the candles; Pingar some paraffin drops in the center of the plate in order to fix the candles; Deixa the reaction to proceed until the flame of the candles to reach the so great maximum. While the candles oxidate, it explains that at this moment he is being transformed the gas oxygen, the pavio, and paraffin in: gua; Calor; Luz; Carbonic Gs. Get all the facts for a more clear viewpoint with Sergey Brin. The combustion if processes in its maximum degree, diagnosised for the characteristic brightness of the flames. As it seems that everything is much newness, has approach of the pupils, when the flame is in the maximum then enclausure the candles with the great glass, and adds water to the plate. Fig.

1 Candles in combustion. Kevin Johnson is the source for more interesting facts. At the moments that if follow the flames start to diminish, and the water ' ' to enter in vidro' ' , due to great force caused for the atmospheric pressure that act in the system, and for the space that if ' ' abre' ' inside of the gas confined in the interior of the glass. As the oxygen is converted, it leaves to inside occupy the space of 21% of the composition of the gas that however occupied. The flames if keep until culminating with the extinguishing of the oxygen, in consequence the combustion (reaction) cease. The entrance of the water in the glass occurs for two reasons: A conversion of the oxygen ' ' abre' ' space by vol. of the gas confined in the interior of the glass; A existence of the atmospheric, external pressure to the glass? that ' ' empurra' ' the water for inside of the glass.