Conclusion:
This experiment investigated the amount of water (drops) that could be fit within the surface area of a penny before it started to leak over the sides of the object.
In order to study the problem, we needed to know the basics about water, it’s surface tension, and cohesive properties, to come up with a reasonable hypothesis and have the information to back it up.
Results showed that after two series of testing, one with a dry penny and one with it being covered in dish soap solution. The first test proved to be more effective, and could fit more drops of water, than when it was covered in soap.
This proved that the hypothesis that if the dish soap was added to the penny then acted as an independent variable in the experiment and was supported because it added a foreign element in the cohesive properties of the water, varying it’s results during the experiment.
To extend this experiment, maybe explore other options as testing variables, such as other liquids to drop or use as a cover for the penny and see how the results differ. Or go more in depth around researching the exact reason why the results were the way they were.
Finally, if the experiment was repeated, some changes to improve the experimental design could be ensuring a more controlled environment, with no possibility of disruptions or interference, for example, bumping the table, having an already wet penny, etc…