Grace+W13

Grace W. 2012-2013
 * THE STUDY OF DIFFERENT LIQUIDS MIXED WITH DETERGENT TO PRODUCE BUBBLES AND TEST THEIR LONGEVITY **

The purpose of this study was to find out what kinds of liquids helped create long lasting bubbles. A soap bubble is a very thin film of soapy water enclosing air that forms a hollow sphere with an iridescent surface. Different liquids were mixed with detergent to make bubble solution, and then bubbles were blown and timed on how long they lasted on a plastic sheet. It was discovered that water made longer lasting bubbles than any other liquid in each experiment. A reason this happened is because the liquids such as V8 Fusion, milk, and coke were all heavier than water, causing faster drainage in the soap film due to the liquids falling down because of gravity.
 * ABSTRACT **

An improvement to all of the experiments would be to use a fan that could blow at a certain wind speed each time to keep the experiments constant. Another good improvement would be to renew the plastic sheet more often, maybe once after one type of bubble solution to avoid contamination, which will make the bubble pop. An interesting future experiment (using the fan improvement idea) would be to try blowing bubbles with different settings on a fan and see how long they last. Another future experiment that could be done would be to measure the distance a bubble floats instead of time it takes to pop and change ingredients in the bubble solution.
 * EXPERIMENTAL IMPROVEMENTS AND FUTURE EXPERIMENTS **

To read the complete ISP Paper for these experiments, click on the PDF file link below. 