PROBLEM TO BE SOLVED: To provide a combustion observation experiment device in which variation in gas concentration around a combustion body is hard to be generated and which, at low cost, can easily observe the relation as to whether gas of various concentrations and the combustion body are combusted or not.;SOLUTION: A combustion observation experiment device includes; a transparent container 1 made of a hard material having an opening 2(a half-cut pet bottle); a polyethylene bag 3 covering the opening 2; a thin polyethylene film 5 which closes a hole 4 (a pouring port of a pet bottle) of the lower part of the container 1; a hole 6 provided on the side surface of the container 1; a tube 9 connecting the hole 6, a pump 7 for gas discharge and a cylinder 8 for experiment gas introduction; and an open-close member 10 which opens and closes between the hole 6 and the pump 7 for gas discharge and between the cylinder 8 for the experiment gas introduction and them.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2017,JPO&INPIT
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