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3 Mar 2007, 11:13 AM
| #1 (permalink) |
| Assistant Member  HSC: 2008 Gender: Female
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22 Dec 2007, 10:55 AM  | Experiment You can hide this advertisement by registering. I have to create an experiment that shows how the Surface Area : Volume ratio affects the rate of diffusion. But i can't seem to come up with an idea. Has anyone else done a similar experiment and could possibly help? I would really appreciate it =). Last edited by jenez; 3 Mar 2007 at 2:04 PM. |
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3 Mar 2007, 12:40 PM
| #2 (permalink) |
| New Member HSC: 2006 Gender: Female
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5 Aug 2009, 1:56 PM | Re: Experiment haha yeh i did dat experiment in yr 11 during biology class. I used agar jelly, cut em up into different dimensions (mm): 30x30x30 , 20x20x20 , 10x10x10 put each into a beaker wif sulfuric acid and just watch the cube go clear. of course the smaller cube, the larger the surface area to volume ratio, and thus a faster rate of diffusion. Hope it helps. |
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3 Mar 2007, 1:47 PM
| #4 (permalink) |
| Moderator  HSC: 2003 Gender: Undisclosed
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Today, 9:19 AM | Re: Experiment Well, a simple experiment that I can think of is to use those Berrcoca (sp?) pills which dissolves in water. You can have a original pill representing one SA:V ratio, and then another pill cut up into 4 pieces representing a higher SA:V ratio, and then a third pill cut up into 8 pieces representing the highest SA:V ratio. You place all three lots into different glasses of equal volume of water and time how long does it take for the water to dissolve all of the solids in each glass.
__________________ PhD, University of Cambridge, 09-12 MSc, UNSW, 08-09 BMedSc (Hons I), UNSW, 04-07 |
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3 Mar 2007, 4:52 PM
| #6 (permalink) |
| duckie's REBORN!!!!! ^^  HSC: 2003 Gender: Male Location: pond... where the ducks are
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17 May 2009, 2:11 PM  | Re: Experiment we used sodium bicarbonate and it had similar effect as barroca
__________________ DUCKIE IS REBORN!!!!! only 3 wks too earlie =S "I am willing to give up any thing for you... even maths!!!!" - anonymous "Don't cry because it ended; smile because it happened." - anonymous |
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15 Mar 2007, 5:43 PM
| #9 (permalink) |
| Moderator HSC: 2003 Gender: Undisclosed
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Today, 9:19 AM | Re: Experiment The above link is also an experiment using jelly to determine the affects of SA:V ratio.
__________________ PhD, University of Cambridge, 09-12 MSc, UNSW, 08-09 BMedSc (Hons I), UNSW, 04-07 |
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10 Apr 2007, 10:07 PM
| #10 (permalink) |
| nice as ice  HSC: 2007 Gender: Female Location: somewhere away from you
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30 Mar 2008, 4:04 PM | Re: Experiment POTATOES!!!!  you just cut differnt sized cubes eg 2 cm x2cm x 2cm then place it in hydrogen peroxide( i think ..) then repeat but cut the cubes in half etc
__________________  death by dawn when words fail, resort to interpretive dance I just got lost in thought. It was unfamiliar territory. - what is death but the refusal to grow old and suffer change ? |
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