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Bacteria

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The Smelly Stench of Bacteria

|April 8th |Me: Fingerprints on both sides. Clean. |Josh: Fingerprints. Clean. Creamish color |
| |Creamish color scratch |in the finger prints. |
|April 9th |Me: Bacteria have grown on both sides. |Josh: Fingerprints. Bacteria growing on |
| |Scratches are turning yellowish. |dirty side. Turning round. Scratches on |
| | |both sides. |
|April 10th |Me: three yellow spots in dirty side. Cream|Josh: one irregular on dirty side. Yellow |
| |color. Irregular bacteria and circular. |scratches. One circular spot on clean. |
| |Circular on clean side, filamentous and |White color little spots on both sides. |
| |yellow color. | |
|April 11th |Me: Circular, yellow, 1.5inches wide on |Josh: Irregular and circular on both sides.|
| |dirty side. Four yellow spots in dirty |Yellow cream color. White color forming in |
| |side. Irregular white spot on clean. |the middle of big spot on dirty side. |
|April 14th |Me: Two big cream circles on dirty side. |Josh: Fuzzy brown Rhizoid in both sides. |
| |Filamentous. Spindle white color on clean. |Yellow and white spots everywhere. 2inch |
| |No pigmented colors. Bright yellow small |spindle on dirty side. |
| |circulars on both sides. | |
|April 15th |Me: No pigmented colors. Filamentous on |Josh: spots starting to join together. |
| |dirty side. Two big creams circular and |Yellow and white everywhere. Clear spots on|
| |irregular on both sides. |dirty side |

Explanation of Data: a. The more days we observed the more the bacteria increased on both dirty and clean. Unfortunately clean had a lot more spots which show that Pural doesn’t in fact kill 99.9% germs and labels on the bottles are lying. Now it does kill some bacteria but most is still staying on your hand all day long. b. In Josh’s Petri dish it showed that washing your hands does help kill bacteria. Most of his growth was on the dirty side where he didn’t use soap. On the clean side where he washed his hand it showed fewer bacteria. Informing us that soap does too kill germs. c. Hand Soap worked better because it killed more bacteria as Pural only killed a few. The more days the bigger the circular bacteria’s would grow on my clean side. Big spots starting creating on Josh’s and his clean side only held a few spots. This was showing us that washing with soap does better work. I had darker yellow colors, Josh had clear cream colors.

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