Tuesday, April 28, 2009

Observation of leaf absorbing CO2

Shalini:We actually needed to find about the amount of carbon dioxide in the bottle.
EdwinI think the experiment was a sucess。
ShaliniWe put a leaf in a bottle。Then,we switched on the light and i gently blew inside the bottle。Then,we put the gas sensor inside the bottle。
EdwinWe set the dataloger to 30minutes and we waited for 30 minutes。After about 15 minutes, water droplets could be seen。The leaf absorbed the carbon dioxide blew by Shalini and gave out oxygen。
ShaliniThe graph on the dataloger showed that the carbon dioxide was a lot
at first but the leaf absorbed the carbon dioxide and decreased。 

2 comments:

  1. I can see that both of you had enjoyed your datalogger lesson. Glad to hear that the experiment was a success!

    Why do you think that the leaf absorbed the carbon dioxide? Make a guess!

    Miss Lee :)

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  2. Edwin:To Photosynthesis
    Shalini:To see how photosynthsis takes place

    ReplyDelete