The Power of Filtration

     This is my fourth action project, in which we measured the TDS of both dirty water and filtered water. At first, we were going kayaking, but it was too cold. Instead, we did this action project. Before starting the project, our hypothesis was that the TDS of the water wouldn't really change because we only used a paper towel.

    Our process had 3 steps. First, we measured the TDS of the water using a TDS measurer. Second, we put a paper towel over a cup and poured the dirty water into the cup. The water would seep through the paper towel and into the cup. Finally, we measured the TDS of the water once again. When we filtered the water, it looked like the TDS of the water would've gone down, as the water got clearer. However, after we measured the TDS of the water, the filtered water had more TDS in the water than dirty water, meaning our hypothesis was incorrect. 


      After the filtration process was done, we put our results on a logarithmic scale, along with the TDS of distilled and salt water. 

  In conclusion, I enjoyed doing this action project. I did something similar to this for my 8th-grade science project, so this wasn't very difficult. If I were to do this again, I would've used activated carbon to see if it would've changed the result. I used activated carbon for my project, and I wonder if that would yield either similar or better results.



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