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Educational equipment: Complectetion Low-complete school room for secondary school

The "Comparison of amount of carbonic gas breathed in and out" device
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  • The "Comparison of amount of carbonic gas breathed in and out" device

    Description

    The device is intended to demonstrate experiments on the "Human health" section.


    The device consists of two vessels which are filled with lime water. The air breathe in and out is separated in vessels respectively. The vessels are fixed in a tripod shipping with the device. Since the speeds of liquid dimming vary, one has to conclude that the amount of CO2 in breathed out air is more than the amount of CO2 in breathed in air.
    Additional information

    Using in rooms:

    Biology
    Low-complete school (natural science)
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