| Nr. | Название главы | Стр. |
| 1. | Introduction | 1 |
| 1.1. | Research Question | 1 |
| 1.2. | Hypothesis | 1 |
| 2. | Relevant theory | 2 |
| 2.1. | Water Absorption | 2 |
| 2.2. | pH | 3 |
| 2.1.1. | Excessively alkaline soil | 3 |
| 2.1.2. | Excessively acidic soil | 3 |
| 2.3. | Thyme | 4 |
| 3. | Variables | 5 |
| 4. | Used tools | 5 |
| 5. | Procedure | 6 |
| 6. | Data Collection | 7 |
| 6.1. | Evaluation | 8 |
| 6.2. | Improvements | 8 |
| 7. | Conclusion | 10 |
| 8. | Bibliography | 11 |
| 9. | Appendices | 12 |
7. Conclusion
By analysing the given data sheets and completing the experiment, we can
clearly see some sort of correlation between plant growth and their corresponding pH level of water. My hypothesis didn't turn out to prove itself, rather doing the complete opposite. I also ended up with results that were totally unexpected, that I couldn't also
scientifically explain. Plant Delta (watered with pH 9) turned out to grow the most
successful of all. It outperformed all other plants both in density and length. Plant
Echo (watered with pH 11) didn't preform especially successfully, when looking at its
increased length by time, which wasn't much of a surprise, as I did and could've
predicted. Plant Charlie (watered with pH 7) surprised me - even though it was
watered with a neutral pH level of water, it preformed worst of all plants. This was
totally contradictory to any scientific literature. Plant Charlie, for some reason, only had one successful sprout, which meant the results were less precise. Moreover, the only seed to sprout from Charlie had a slow, but exponential growth rate, rather than Echo, which could barely sustain an increasing length, yet had a longer plant in the end.
I was surprised by the fact that Plant Alpha(watered with pH 4) was the 2nd
longest, although it was far from the recommended pH level. This lead to me to
deduce that thyme is a very self-sustainable plant and is able to grow successfully, even if the conditions are not as good as they could be. Although I had already understood this before, I had expected that Plant Alpha would preform more poorly, simply due to the very alkaline soil and water used to saturate it.
Plant Echo did not surprise me at all and lead to me conclude that thyme is able
to grow more successfully at a lower pH, rather than a high pH. The pH was simply
too high for the plant and, as mentioned in the relevant theory about pH, it meant that
Plant Echo was unable to obtain phosphorus, calcium and magnesium as efficiently. The impact of this was only noticeable by the end of the experiment, due to its stunted growth.
…
Plants and nature have been a part of my life for a very long time. Whether that has been because of the area I had lived in, or the occasional visits to my grandparents rural home, I had developed an interest in nature at a very early age. Taking it all for granted, I had never gone in- depth to find out more, let alone grew a plant. This essay turned out to be an opportunity to try something I had never done before, as well as to teach myself more about nature and thyme in particular. Even though the process would be challenging, as I had never actually grown my own plant before, I knew it would open new doors and server as a worthy experience. It has always been nice to incorporate my grandparents fresh veggies into my meals. Not only that, many rural citizens depend on their crops for survival and as a source of income. This got me thinking about various crop yield factors, that the farmers may impact, as an attempt to increase their yield. The factor that first came to mind was the pH level of water used to water the crops. I couldn't put my finger on whether or not the pH of water would even impact the crops or if the farmers would even pay attention to a detail such as this one. I decided this was an important and worthy factor to look as, as water is a key component, if not the main component, to the growth of a plant. I hypothesised that, even though my grandparents may not worry about the pH level they grow their crops with, farmers at a higher scale may take it into account.
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