Ethan+W13

Ethan Wilk 2012-2013
 * THE STUDY OF IF STRAWS OF DIFFERENT LENGTHS EFFECT THE DISTANCE A SPITBALL FLIES **

The purpose of this study was to find what combination of size of straw, place in straw, material, and liquid that the spitball is dipped in that shoots a spitball the farthest. The farther back the spitball made out of paper towels were pushed into the straw the farther the spitball flew, this is because the farther back in the straw you push the spitball the more pressure build up and acceleration there is making the spitball go out of the straw with more speed and force. The method used was to change the independent variable (size of straw, material, etc.) then load the spitball into the straw and shoot it, the point where the spitball stops moving is measured with meter sticks. The overall farthest flying spitball was a two square cm piece of pape r towel dipped in water rolled into a ball and shot from the tip of an eighteen cm long straw. The results are this way because paper towels absorb water the best weighing it down and making it more aerodynamic.
 * ABSTRACT **


 * EXPERIMENTAL IMPROVEMENTS AND FUTURE ** **EXPERIMENTS**

====Improvements that can be made to the experiments are to use wider straws that would allow for larger spitballs to fit in the straw allowing the possibilities for more experiments to be tested. In the future it would be interesting to determine whether swirly straws affect the distance a spitball flies. ====

To read the complete ISP Paper for this experiment, click on the PDF file link below.