Labels:book | bulletin board | dialog box | hakham | monitor | web site | window OCR: HELP Measuring oxygen in your breath This experiment lets you compare the amouni of Oxygen in the air you breathe in and breathe out You will need two glass jars and two candles. 1 Turn the first jar upside down over burning candle Time how long takes or the candle to go out? 2 Take deep breath and breathe out into the second iar. Turn the jar upside down over burning candle Time how long it takes for the candle to go out. The air that you breathe out should contain less Oxygen than the air you breathe in This means that the candle in the first jar should burn for longer than the one in the second jar What is the time diff erence? What gas(es) are contained in the air you breathe out? oxvgen amount Turm unside burnine dilference
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