Hand Sanitizer Lab Report

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Mold is a member of the fungi family. Since mold is part of the fungi family, it cannot use the sun to obtain energy. This means that mold has to use other plants or animals to grow. Even though they cannot see them, there are millions of mold spores in the air. These spores settle down and start to multiply which can be done rapidly or slowly as long as it has a food source. Mold usually grows best in warm environments, but it can still grow in cold environments also. Mold can cause illness such as vomiting or feeling nauseated when it is eaten or when it smells bad.
Bacteria are single celled microbes. Bacteria reproduce by binary fission. In this process, the bacterium, which is a single cell, divides into two identical daughter cells. Binary …show more content…

As long as the hand sanitizer contains at least 60 percent alcohol and is used correctly, then it does not matter which form of hand sanitizer is used. Hand sanitizers kill most, but not all of the bacteria and viruses on contact, but it does not work well when there is grime from cooking or gardening because the grime makes a barrier.

B. Purpose/ Objective
To see which name brand of hand sanitizer will work the best in disinfecting bacteria and mold. This experiment will show people which hand sanitizer works best to stay disinfected when there is no access to soap and water when needed.

C. Hypothesis
The Germ-X name brand of hand sanitizer will work best in disinfecting the micro-organisms.

D. Parts of the Experiment
1. independent variable – Purell, Germ-X, Generic Name Brand (Walgreens)
2. dependent variable – amount of bacteria/mold there was (the colonies)
3. control – The section that was swabbed but has none of the hand sanitizers
4. factors held constant – the door knob that was swabbed, time amount, petri dish, lighting, temperature

II. Materials
• 1 petri dish
• 1 cotton swab
• Germ-X
• Purell
• Generic Name Brand (Walgreens)
• Coffee …show more content…

Inconsistencies in this lab could have caused variations in data collecting. Collecting data from one petri dish was challenging because something could have been different on other petri dishes if this experiment was tested on several petri dishes. This could have been different because the other petri dishes could have had more micro-organisms in Section 2 instead of Section 1, or no bacteria could have grown at all in every section of the petri dish.- Second, nothing grew in section B even though there were no disinfectants in that section. The reason why the bacteria and mold might have grown in sections 1, 2, and 3 was because in the process of making the experiment, the coffee filter papers were touched with glove free hands and were not clean. If this lab was run again, some changes would be to wear rubber gloves, do not pour the hand sanitizers on the coffee filter paper but just pour one pump straight into the petri dish, have more than one petri dish to collect data off of, and check when the last time someone cleaned the door knob

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