Sci/230 Scientific Method

In completing the Tomato Plant experiment I had to apply the scientific method. I observed that my tomato plants were producing less fruit each year. I then questioned some of the elements that may have affected the tomato plants and caused them to bear fewer tomatoes being a deficiency in warmth, water, or nutrients. I then selected my hypotheses that the plants were in need of more nutrients. Following my hypothesis I developed my prediction which was that my plants would bear more tomatoes if I was to replace the old soil with new soil before planting. I then concluded, based off of the graph depicting the number of tomatoes per plant, that my hypothesis was supported because; my predication was accurate and the plants grew more tomatoes after I had replaced the soil. One of my trucks recently broke down, very suddenly. I used the scientific method to solve my problem, without even realizing it. I observed that my vehicle would not turn over, or start, despite having a full tank. I then questioned what components of the truck could be causing it not to start. I then hypothesized that the engine was not receiving enough fuel. I then created a prediction that if I replaced the O2 sensor my vehicle would start up. So after running a diagnostic and confirming that the O2 sensor was in fact malfunctioning I replaced it. Unfortunately, my hypothesis was not proven correct because, my vehicle still would not start up so I went back to the drawing board and revisited some of possible solutions for why the vehicle might not be receiving enough fuel to operate. I then formulated a new prediction that if I replaced the fuel pump then the engine would receive the fuel it needed to operate. After, replacing the fuel pump I concluded that my hypothesis was supported. My vehicle started right up and has been in perfect working order ever since.