Bacteria lonies Experiment by Emily Scellin

General Location you can find bacteria

escellin28 — 2025-08-14 13:26:17 UTC

You can find bacteria anywhere there is contact. For example a toilet flush handle, locker handle, dumbbell, and dry erase marker.

Claim

escellin28 — 2025-08-14 13:27:32 UTC

I predict that the place with the most bacteria will be the toilet flush handle. Due to its gross setting and how many unclean hands touch it.

Compared to the actual result, my claim was incorrect because I did not take into account how many hands would touch a locker. Especially, in an environment where hands might not be the cleanest.

Pictures

escellin28 — 2025-08-14 13:29:26 UTC

Pictures

escellin28 — 2025-08-14 13:29:41 UTC

Graph

escellin28 — 2025-08-14 13:31:35 UTC

Evidence

escellin28 — 2025-08-15 13:01:54 UTC

I know that bacteria is found in those places because our skin carries bacteria. The more we interact with different surfaces, the more bacteria accumulate on that surface. We chose these places because they are high contact areas.

Reasoning

escellin28 — 2025-08-15 13:09:43 UTC

The data does not support my claim because of how frequently the bathrooms are cleaned and the time of day we tested it. The results that we got are proof that bacteria does accumulate in high contact areas, especially those that are not cleaned much. Which is what we saw with the locker.

Data table

escellin28 — 2025-08-15 13:10:45 UTC