Anne Kathleen Sutherland
aks13 at merhaba.cc.columbia.edu
Tue Oct 17 16:34:08 EST 1995
I am preparing to teach a 9th grade bio lab tomorrow (wed. 10/18).
In order to teach them about diffusion and surface area vs. volume I am
going to have them soak potatoes in iodine. Here is the question:
If the solution of Iodine is orange, why does the potatoe turn
blue after sitting in the iodine for a while?
Thank you for any and all responses.
Anne K Sutherland
Wherever you go, beware of approaching the women.
- Egypt, Old Kingdom scribal advice
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