Starting the Experiment

I have bought all the equipment I need for the experiment. I have plastic tubing, a plastic cap to seal one end of
the tube, a marble, a stopwatch and a variety of liquids.
So now, my next step is to start the experiment. It should be very straight forward and shouldn't take too much time. Straight from my average results, I'll create a column graph based on the average results and then draw a conclusion based on the results. All this information will then be written up into the final report.