In my experiment, I wish to examine how soap affects the strenght of the surface tension belonging to different, water-based liquids as well as one, non-water based liquid (low surface tension - supervision and control). I will do so by percieving the motion of pepper upon said liquids when the surface tension begins weakening. So, without further adieu:
What is the relatoin between the surface-tension of a liquid and the patterns of motion upon it under the influence of detergent substances?
Watch the video and follow the instructions below.
1) Pour four liquids into flat plates (recycable): oil, orange juice, vinegar and water.
*Make sure you use an identical amount of each (use a measuring cup).
2) Scatter black pepper on top.
3) Dip a Q-tip/finger in simple, dishwashin soap.
4) Dip the coated Q-tip/finger within the liquid.
5) Use a ruler to measure the diameter formed (CM).