Qualification > Sciences
IGCSE Biology
thukon:
lol. I D K!!!! I wrote measure the amount of water uptaken by the radish and then subtract.
nid404:
--- Quote from: thukon on June 09, 2009, 05:06:43 am ---lol. I D K!!!! I wrote measure the amount of water uptaken by the radish and then subtract.
--- End quote ---
Heat the radish in a microwave to remove all the water. When all the water from the radish is lost,it can be weighed.to give the dry mass
QuickSilver:
For The Dry Mass You Should Have Heat It Gently For A Period Of Time Or Keep It In An Oven Or Like Beside A heater to make as much as of the water to evaporate! dont worry i got it wrong too :)
thukon:
But the experiment is continued after the dry mass is weighed each time. If you het it, wont that kill it? And then the experiment cant be continued.
QuickSilver:
--- Quote from: thukon on June 09, 2009, 05:21:42 am ---But the experiment is continued after the dry mass is weighed each time. If you het it, wont that kill it? And then the experiment cant be continued.
--- End quote ---
yeah exactly so the heat should be gentle to make sure it doesnt affect any enzymes or the plant itself :)
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