1, Grow bacteria. I have some serious doubts about if bacteria will grow if I simply stroke the agar jelly thingum. I am scared that they won't grow; if bacteria don't grow even for the control my experiment is doomed. One thing: should I use cotton swabs with water? Would it better enable bacteria to get onto the jelly surface?
To do:
- Try out growing bacteria at home
-Do research about how people grow bacteria/transfer
- ask people about if bacteria will transfer easily by contact.
-find that bacteria culture worksheet!!
2, Pilot test for washing hands. How can I wash hands so that it is most fair for each substance tested to have the same space and time to function on the hands? Now i'm thinking to 1) pour 50mm3 of liquid onto my finger 2) scrub it with two fingers (same fingers) of my other hand by stroking firmly 10 times
3) Let the substance remain on my hand for another 15 seconds. 4) rinse finger under water for 10 seconds.
But i need to test out this washing hands method.
3, Confirm the lab and equipment arrangements for next Monday. I don't know whether Ms Tan needs the hard copy since I emailed her the soft copy of the requisition form. I need to check.
4, Get the materials for the experiment on Monday.
-lemons
-lime
-pH testing paper
-test-tube-like containers from Mom's lab, to be sterilized by boiling water, to carry a fixed amount of each liquid to school.
-prepare lemon juice and lime juice by squeezing.
5, Write out the complete run-through plan of actual experiment -- preparation of cultures. Run through it in my mind completely.
6, Other stuff: email my appendix D, tell Ms Tan I am not using ImageJ (cannot understand how it works).
7, Thing to bring on experiment day:
-camera
-stationary
-plenty of paper
-containers containing lime juice, lemon juice, normal soap, antibacterial soap
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