Shaan+D

Shaan D. 2011 - 2012
 * TESTING THE REACTIONS AND HIGH PRESSURE OF DRY ICE USING DIFFERENT VARIABLES**


 * ABSTRACT**

This experiment was done to test the reactions of dry ice to see what makes for the quickest, strongest one. This experiment was done using three different sized containers, three different liquids, and by warm and cooling those liquids. It was hypothesized that a warm, acidic liquid would work the best and the most efficient container would be the smallest one, since it would have the least space for the carbon dioxide to build up. To test the dry ice, a liquid, possibly warmed or cooled, was placed into one of the containers. A 6 g piece of dry ice was taken, with tongs, outside, along with the liquid in the container. The dry ice was put into the container with the liquid and the top was replaced. A timer was started and stopped when the top popped off, or if after ten minutes the top doesn’t. What happened was observed and recorded, then repeated with different variables. It was found that warm ammonia (the basic liquid) in the smallest container caused the most explosive and quickest reaction. Out of the three different temperature groups of liquid, the best of them was the warm liquids. A comparison experiment was done. It was found that ice melts quicker on metal than plastic and dry ice makes a sound and slides around on metal, but does extraordinary nothing on plastic.


 * EXPERIMENTAL IMPROVEMENTS AND FUTURE EXPERIMENTS**

A way to make this experiment better would be to add more variables to test. Another thing is to add more smaller-sized containers, since in this experiment only one of the containers worked well. Changing these things would make the experiment longer, but would provide a more definite answer to the purpose of the experiment. An experiment that could be done in the future is to test more properties of dry ice in different ways, not just its high pressure. Regular ice could also be tested like this for a future experiment. To read the complete ISP paper for this experiment, click on the PDF file link below. 