VI. Data Analysis & Discussions

Similarities:

• Both increasing trend

Differences:

• Number of increases is not consistent.

Discussions:

We found out that our hypothetical graph was very similar to our actual experiment graph. They have both a gradually increasing trend. However, in our hypothetical graph, we hypothesised that it should have about a 2 times increase from one timing to the other. In our actual experiment graph, the increase varies from the timings and is not consistent. For example, from 5 seconds to 30 seconds, there was less than a 5.00 increase. However, from 60 seconds to 300 seconds, there was more than a 5.00 increase as shown in the graph.

We concluded that the experimental data support the hypothesis to a certain extent.

After some research, we found out some theories as to why this is so is because eating food dropped on the floor may result in us falling ill from ingesting harmful bacteria, as other studies and research showed the possibility that bacteria may reproduce in one’s body and release toxins that can damage their body’s tissues and make them feel ill when consumed.

We concluded that as the time the food is in contact with the floor increases, the number of bacteria that could contaminate it also increases.

We decided to change the hypothetical and Day 3 graph to a line graph rather than a bar graph as we wanted to see the rate of growth.