surface area to volume experiment

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kimmy68
Posts: 20
Joined: 21 Jul 2021, 12:22
Job Title: Lab Assistant
School: Quirindi High School
State/Location: NSW

surface area to volume experiment

Post by kimmy68 »

#-o Does anyone have a great experiement to show Surface Area to Volume Experiement that IS NOT the bromothymol blue or phenolphthalein Agar Cube Experiment.

Thankyou in advance :thumbup: :thumbup:
KIM
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ELIZABETH
Posts: 233
Joined: 02 Jun 2006, 10:00
School: O'Connor Catholic College
Suburb: Armidale
State/Location: NSW

Re: surface area to volume experiment

Post by ELIZABETH »

Potato cubes in iodine....works really well.

https://www.google.com/search?q=surface ... uZq9mAU_28
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Merilyn1
Posts: 1477
Joined: 12 Mar 2013, 08:10
Job Title: Labbie
School: Wollondilly Anglican College
Suburb: Tahmoor
State/Location: NSW

Re: surface area to volume experiment

Post by Merilyn1 »

ELIZABETH wrote: ↑19 Feb 2024, 10:00 Potato cubes in iodine....works really well.

https://www.google.com/search?q=surface ... uZq9mAU_28
We've done this one in the past but the increased cost of spuds and then the cost to dispose of all the iodine has driven us back to the phenolphthalein agar prac instead. My predecessor, for some reason, wouldn't make the agar so they'd started doing the potato method instead. The last couple of years we've gone with the much cheaper option of the agar.
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