At the beginning we put a lighted candle on the water surface on the plate. Nstępnie nakryliśmy glass candle so that the water shut off the air supply to the candles. Then, we have observed that the candle goes out, and the water level increases significantly in the glass.
This experiment showed us that the candle does not need air to burn, but only oxygen. If the oxygen content decreases during combustion, then the candle goes out. And when the oxygen is "used up" his place is taken by water, as nature hates a vacuum.
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