Results + Photos

I have completed my experiment and recorded all results in a table. I measured turbidity of the filtered and non-filtered liquids and then calculated and graphed the difference between the average turbidity’s of the filtered and non-filtered liquids. At the end of my experiment the average difference between the filtered and non-filtered dirty water was 671.2NTU, the black tea was 84 NTU, the Coca-Cola was 56.5NTU and the soapy water was 131.1NTU. The turbidity of the dirty water will change the most drastically when it is filtered, followed by the soapy water, then the black tea and finally the cola-cola. 
My results table is as follows: 







My results graph is as follows:
















Comparison photos of the non-filtered and filtered liquids: 

BLACK TEA:

     - Smell of tea changed – not as strong

-    - Colour of filtered tea became lighter

-    - Bubbles formed at the top of the liquid

-    - Tea became cold

-    - Took roughly 20+ minutes to filter fully

DIRTY WATER:

-     - Colour of filtered water became lighter

     - No dirt particles present to the human eye in filtered liquid

-    - Took roughly 20+ minutes to filter fully

         
COCA-COLA:

-    - The colour of the liquid changed – became lighter

-     - More bubbles formed

-     - Took roughly 10-15 minutes to filter

-     -  Smell changed- reduced 

          
SOAPY WATER:

-     - Took roughly 15- 20 minutes to filter fully

-     - Bubbles rose to the top of the liquid

-     - Bubbles still visible in liquid

-     - Colour changed (due to other liquid residues)