Experimentation

Have done Day 1 and Day 2 of the experiment. A few corrections to the procedure:
1, used masking tape to seal up plates.
2, did not use stopwatch.

anyway, the results of 1st observation is rather unexpected: a lot of bacteria grew in lemon juice and distilled water, even more than control, while antibacterial soap seem to be nurturing mould.
I'm also having difficulty counting the bacterial colonies. Shall attempt ImageJ again, i took photos of the plates and I have to admit counting them is hard. I'm not sure if I haven't double-counted. And though i classified them into groups based on their sizes, some of them seem to be in between two groups, and some are merging into one (round shape or strip-shape) so it's really hard to count.

That's all for now.